OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS SSB320A1 Lycomingservice Pubs
User Manual: SSB320A1
Open the PDF directly: View PDF .
Page Count: 65
![](asset-1.png)
Service Bulletins
Letters and Instructions
INDEX
SSP-301 SEPTEMBER 2001
© 2001 By Textron Lycoming “All Rights Reserved”
INDEX OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
Alphabetical Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Active Publications (Numerical Listing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Engine Application Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
List of Supersedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Inactive Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
NOTE
In addition to the operator’s manuals, overhaul manuals, and parts catalogs that are published for the various models of
Textron Lycoming engines; bulletins, letters and instructions are issued as required to inform all concerned of new
policies, products, modifications, and maintenance information applicable to the support of Textron Lycoming aircraft
engines. Service Letters are issued to explain service policies and introduce new products, or processes approved for
Textron Lycoming engines. Service Instructions describe modification, processes and other information pertinent to
maintenance repair and overhaul of Textron Lycoming engines. Service Bulletins (published since April 1960) describe
mandatory procedures that must be observed for safety reasons, and readily identified by the mandatory heading printed
in red.
Service Bulletins, Letters and Instructions are available to all from authorized Textron Lycoming distributors, or from
the factory; the latest edition of Service Letter No. L114 describes the subscription policy regarding these publications.
1
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1110C AC Fuel Pumps, Replacement
S.I. 1212 Accelerator Pump, Marvel-Schebler Carburetors with – O-235-C Series
S.I. 1351 Accessory Drive Gear and Drive Shaft
S.I. 1503 Accessory Drive Gear and Shaft Dowel Replacement
S.I. 1203 Accessory Drive Shaft Adapter Assy., Installation of Improved
S.I. 1145 Accessory Drive Shaft, Modification to Incorporate Larger Spline Drive
S.I. 1171 Accessory Housing and Covers, Salvage of
S.I. 1394 Accessory Housing Assy. and Housing Cover Assy. Modification to Retrofit Hollow Oil Transfer Dowel
S.B. 247 Accessory Housing, Modification of Oil Metering Plug
S.I. 1203 Adapter Assy., Accessory Drive Shaft, Installation of Approved
S.I. 1295 Adapter Bearing, Oversize Supercharger
S.B. 411B Adapter Kit for Magneto Isolation Drive
S.I. 1436 Adapter Kit for Magneto Isolation Drive
S.I. 1368 Adapter Seal Washer and Retainer, Tachometer
S.I. 1329A Adapter Seals, Supercharger Inlet
S.I. 1158 Adapter, Magneto Drive, Replacement
S.B. 466 Adapter, Oil Filter Base, Inspection
S.L. L218 Adapters, Fuel Pump
S.L. L190 Additive, Fuel, Use of “TCP”
S.L. L172B Additive, Fuel, Use of Ethylene Glycol Monomethyl Ether (EGME) such as “Prist”
S.L. L226 Additive, Oil P/N LW-16702, Discoloration
S.B. 471A Additive, Oil, Use of Textron Lycoming LW-16702
S.B. 446D* Additive, Oil, Use of Textron Lycoming LW-16702 (A.D. #80-04-03)
S.I. 1409B Additive, Oil, Use of Textron Lycoming LW-16702
S.L. L154B Adjustment Consideration for Returned and/or Run-Out Engines
S.B. 465C* Aerobatic Engine Crankshaft Flange Inspection (A.D. #84-13-05)
S.B. 403 Aerobatic Engine Lubricating Requirements
S.L. L208 Aerobatic Engines, Breather Options
S.L. L202B Aerobatic Maneuvers, Engines Installed in Aircraft Used for, All 320, 360, and 540 Series Using Crankshafts
with Lightning Holes
S.B. 509 Aeroquip Service Bulletin No. AA135, “601 Hose Assemblies”
S.I. 1464 Aeroquip Service Bulletin No. AA91, “Hose Line Problems”
S.I. 1002 Air Filters, Carburetor, Proper Maintenance
S.I. 1396 Air Housing, Induction, Redesigned
S.B. 417A Air Inlet Housing
S.B. 538A Air Inlet Tube Replacement
S.B. 401 Aircraft Struck by Lightning, Recommendations
S.B. 361 AiResearch Bulletin No. 1172-1A, “Turbocharger Modification”
S.B. 347 AiResearch Bulletin No. 571-1, “Turbine Housing Inspection & Replacement”
S.B. 329A AiResearch Bulletin No. TP60-0100, “Turbine Housing Inspection”
S.B. 383 AiResearch Bulletin No. TP60-0101, “Inspection of Model T1823 Turbocharger with Stainless Steel Turbine
Housings”
S.B. 379 AiResearch Bulletin No. TP60-0103, “Inspection of Remanufactured Waste Gate Valve Assy.”
S.B. 391A AiResearch Bulletin No. TP60-0105, “Turbocharger Repl. or Mod. (Refer to Supplement No. 1 to S.B. 391A)
S.B. 440 AiResearch Bulletin No. TP60-0115, “Spring Pin Replacement – Variable Absolute Pressure Controllers”
S.B. 450 AiResearch Bulletin No. TP60-0119, “Bypass Valve Modification”
S.B. 452A AiResearch Bulletin No. TP60-0121, “Turbo Inspection”
S.I. 1223 AiResearch Instruction No. 969-1, “Freeing Turbine Shaft”
S.I. 1328 AiResearch Letter No. TP61-0002, “Turbocharger Replacement”
S.I. 1416 AiResearch Letter No. TP61-0039, “Turbocharger Bypass Valve Modification”
S.L. L231 AiResearch Turbo Control Test Set P/N 481070-1, Variable Absolute Pressure Controller Calibration Values
S.B. 484* Alignment, Inspection and Modification of Crossover Exhaust Assembly (A.D. #89-12-04)
S.B. 213A Allen Head Nuts (Cylinder Base), Replacing Cylinder Base Spline Nuts with
S.L. L142B Alterations, Policy Relative to Affecting Engine Performance
S.B. 386 Alternator Bearing Lubrication – TIGO-541-E
* - Airworthiness Directives.
2
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1254 Alternator Belt Replacement
S.B. 536 Alternator Belt Tension
S.I. 1129B Alternator Belt Tension, Methods of Checking
S.B. 511 Alternator Bracket Installation
S.B. 356 Alternator Bracket Support, Addition of – TIO-540-A2C
S.I. 1283A Alternator Cog Belt and Pulley Installation
S.I. 1330A Alternator Drive Coupling, Spring Loaded – TIGO-541-E
S.I. 1266 Alternator Ground Strap – All Engines with Prestolite
S.I. 1270A Alternator Mounting Bracket Shims
S.I. 1249 Alternator Pulley and Shaft Assy.
S.I. 1259 Alternator Replacement – VO-435-B1A
S.I. 1253 Alternator, Prestolite Bulletin No. ASM-5, “Field Terminal Stud Insulation Replacement”
S.I. 1237A Alternator, Prestolite Bulletins No. ASM-3 & ASM-4, “Aircraft Charging System Service Precautions”
S.I. 1451A Alternator, Starter and Compressor Installation
S.I. 1105A Alternator/Generator Mounting Brackets, Periodic Inspection
S.I. 1154H Alternators, FAA Approved
S.B. 524* Aluminum and Sintered Iron Oil Pump Impellers, Replacement (Refer to Supplement No. 1 to S.B. 524)
(A.D. #96-09-10)
S.L. L235A Aluminum Hub Propeller, Hartzell Compact, Installation on Comanche 250 Aircraft
S.L. L147B Anderol 471 All-Climate Synthetic Aircraft Lubricant
S.L. L237 Area Code, Telephone, Change, Textron Lycoming, Williamsport, PA
S.I. 1454 Arm, Rocker, Parallel Valve Installation
S.I. 1210B* Attaching Nut Replacement, Pinion Cage (A.D. #69-25-08)
S.I. 1196 Attaching Studs, Replacement of Reduction Gear
S.I. 1076 Backlash, Bevel Gear Assys., Pitch Alignment and
S.B. 489A Baffle Assembly, P/N LW-13383, Oil Sump
S.I. 1279B Baffle, Replacement, Oil Sump
S.I. 1363 Ball Joint and Retaining Strap, Exhaust Manifold
S.I. 1292A Bearing and Lubrication Modifications, Stainless Steel Thrust
S.I. 1377 Bearing Bore Repair, Crankcase Main, and Oversize Main Bearings (Refer to Supplement No. 1 to S.I. 1377)
S.B. 326A* Bearing Dowel Replacement (A.D. #’s 71-05-02 & 72-21-06)
S.I. 1225D Bearing Dowel, Crankcase, Replacement
S.I. 1250 Bearing Lubrication, Propeller Shaft
S.I. 1177B Bearing Repair, Governor Drive, in Crankcase
S.B. 547 Bearing Replacement, Connecting Rod on TIO-540-AE2A Model Engines
S.I. 1020B Bearing Replacement, Crankshaft Main
S.B. 544 Bearing Replacement, Part Identification
S.I. 1312 Bearing Replacement, Propeller Drive Thrust (Crankcase P/N LW-13082)
S.I. 1149 Bearing Support Web, Crankcase, Inspection & Modification
S.I. 1108C Bearing Surfaces, Propeller Shaft, Repair (Refer to Supplement No. 1 to S.I. 1108C)
S.B. 386 Bearing, Alternator, Location
S.B. 327C* Bearing, Inspection of Center Main (A.D. #’s 71-05-02 & 72-21-06)
S.I. 1295 Bearing, Oversize Supercharger Adapter
S.I. 1356 Bearing, Oversize Thrust, for Reduction Gear
S.B. 390A Bearing, Propeller Thrust (LW-12978) Inspection
S.B. 276 Bearing, Replacement of Front Main at Overhaul
S.B. 371B* Bearings, High-Crush, New Rod Kits (A.D. #73-05-01)
S.I. 1432A Bearings, Installation of High-Crush, Thin-Wall Rear Main in Crankcases without Retention Dowels
S.I. 1283A Belt and Pulley, Alternator Cog, Installation
S.B. 536 Belt Tension, Alternator
S.I. 1129B Belt Tension, Alternator, Method of Checking
S.I. 1254 Belt, Alternator, Replacement
S.I. 1252C Bendix 1200 Series Magneto Installation
S.B. 516 Bendix and TCM S-20 and S-1200 Series Impulse Coupling Magnetos, Inspection and Removal
* - Airworthiness Directives.
3
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1276 Bendix Electrical Components Bulletin No. 529A, “Torque Values for Drive Shaft Nut”
S.I. 1365 Bendix Electrical Components Bulletin No. 597, “Cleaning Ignition Harness Spark Plug Ends”
S.I. 1375 Bendix Electrical Components Bulletin No. 603, “Ignition Noise in Aircraft Communications Equipment”
S.B. 305B* Bendix Fuel Injector Bulletin No. 18, Rev. 4, “Replacement of Bendix Fuel Diaphragm Assy. (A.D. #67-22-06)
S.I. 1166A Bendix Fuel Injector Bulletin No. 20, Rev. 2, “Identifying Fuel to Air Seal Leak”
S.I. 1244 Bendix Fuel Injector Bulletin No. RS-35, “Changes – Regulator and Fuel Control System”
S.I. 1247 Bendix Fuel Injector Bulletin No. RS-37, “Replacement of Idle Valve Lever Assy.”
S.B. 382* Bendix Fuel Injector Bulletin No. RS-43, “Inspection & Modification of Flow Dividers” (A.D. #75-09-15)
S.B. 428* Bendix Fuel Injector Bulletin No. RS-52, “Mod. of RSA-5AB1, RSA-5AD1 & RSA-10AD1” (Refer to
Supplement No. 1 to S.B. 428) (A.D. #78-23-10)
S.B. 429* Bendix Fuel Injector Bulletin No. RS-53, “Modification of RSA-7AA1” (A.D. #78-23-10)
S.B. 430* Bendix Fuel Injector Bulletin No. RS-54, “Modification of RSA-10DB1, RSA-10DB2 & RSA-10ED1” (Refer
to Supplement No. 1 to S.B. 430) (A.D. #78-23-10)
S.B. 433A* Bendix Fuel Injector Bulletin No. RS-57, Rev. 1, “Inspection of Fuel Diaphragm Assy. P/N 2529471” (A.D.
#79-04-05)
S.B. 444A* Bendix Fuel Injector Bulletin No. RS-62, Rev. 2, “Modification of Mixture Control Shaft Assy.” (A.D.
#81-03-05)
S.B. 445 Bendix Fuel Injector Bulletin No. RS-63, “Inspection of Fuel Diaphragm Assy.”
S.B. 441 Bendix Fuel Injector Bulletin No. RS-66, “Modification of Idle Valve Assy.”
S.B. 442* Bendix Fuel Injector Bulletin No. RS-68, “Integrity Inspection of Regulator Stem Nut” (Refer to Supplement
No. 1 to S.B. 442) (A.D. #’s 79-21-08 & 79-26-03)
S.B. 443* Bendix Fuel Injector Bulletin No. RS-69, “Integrity Inspection of Regulator Stem Nut” (A.D. #79-21-08)
S.I. 1414A Bendix Fuel Injector Bulletin No. RS-77, Rev. 1, “Air Bleed Nozzle, RS & RSA Fuel Injection Systems, Two
Piece Assembly”
S.B. 467* Bendix Fuel Injector Bulletin No. RS-88, “Deter. Of Fuel Diaphragm Change” (Refer to Supplement No. 1 &
No. 2 to S.B. 467) (A.D. #83-22-04)
S.I. 1378 Bendix Fuel Injector Bulletin No. SSB-317, “Overheating Bendix Fuel Injectors & Carburetors”
S.I. 1404A Bendix Fuel Injector Bulletin No. SSB-318, “Overhaul Periods for Bendix Fuel System Components”
S.I. 1335 Bendix Fuel Injector Letter No. 22, “Mixture Control Maintenance”
S.B. 340 Bendix Magneto Bulletin No. 530A, “Securing Coil Clamp”
S.I. 1260 Bendix Magneto Bulletin No. 533A, “Acceptable Stress Relief Fissures, Flow Lines & Cracks”
S.I. 1226 Bendix Magneto Bulletin No. 545, “Tubing for S-1200 Cover Hold Down Screw”
S.B. 341 Bendix Magneto Bulletin No. 549, “Locating Shoulder for Carbon Brush Spring”
S.B. 343B Bendix Magneto Bulletin No. 551A, “New Distributor Block Lubricant”
S.B. 376* Bendix Magneto Bulletin No. 556B, “Magneto Drive Shaft Bushing Change” (A.D. #74-26-09)
S.I. 1282 Bendix Magneto Bulletin No. 560, “Replacement of Transformer Coils & Rotating Magnets”
S.B. 373 Bendix Magneto Bulletin No. 566, “S-1200 Distributor Block & Gear Change” (Refer to Supplement No. 1 to
S.B. 373)
S.I. 1332 Bendix Magneto Bulletin No. 573, “Green Distributor Blocks”
S.I. 1327 Bendix Magneto Bulletin No. 580, “Breaker Securing Screws”
S.B. 416A* Bendix Magneto Bulletin No. 584B, “Coil Retaining Devices, D2000/D2200 Mags” (A.D. #78-18-04)
S.B. 410 * Bendix Magneto Bulletin No. 587, “Inspection D2000 Carburetor & Lead Crimp Terminals” (A.D. #78-18-04)
S.I. 1367 Bendix Magneto Bulletin No. 588, “Stress Lines in Distributor Blocks”
S.B. 414* Bendix Magneto Bulletin No. 589, “Rear Bearing Lubrication, D2000/D2200 Mags.” (A.D. #77-17-07)
S.B. 415A* Bendix Magneto Bulletin No. 590A, “Rotating Magnet to Housing Clearance, D2000/D2200 Mags.” (A.D.
#78-18-04)
S.I. 1382 Bendix Magneto Bulletin No. 592, “Inspection of Breaker Contact Assys. & Capacitor Flag Terminal Crimps”
S.B. 427A Bendix Magneto Bulletin No. 600, “10-353110 Bearing in D2000/D2200 Mags.”
S.B. 438A* Bendix Magneto Bulletin No. 605A, “Housing Distortion & Coil Retention” (A.D. #80-17-14)
S.B. 437* Bendix Magneto Bulletin No. 606, “D2000/D2200 Mags. Using Green Distributor Blocks” (A.D. #79-12-07)
S.I. 1400 Bendix Magneto Bulletin No. 608, ‘Self-Locking Cam Retaining Screws”
S.B. 458 Bendix Magneto Bulletin No. 613, “Inspection and/or Replacement of Green Distributor Blocks”
S.B. 461 Bendix Magneto Bulletin No. 617, “Inspection or Replacement of Distributor Gears”
S.B. 459* Bendix Magneto Bulletin No. 618, “Inspection or Replacement of Distributor Gears” (A.D. #81-12-06)
* - Airworthiness Directives.
4
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 460 Bendix Magneto Bulletin No. 619, “Inspection or Replacement of Distributor Gears”
S.B. 464A* Bendix Magneto Bulletin No. 623A, “Inspection of Impulse Coupling Cam Assys.” (A.D. #82-20-01)
S.L. L207 Bendix Magneto Bulletin No. 625, “Broken Coil Securing Clamps, P/N 10-50765”
S.I. 1433 Bendix Magneto Bulletin No. 626, “Installation of Impulse Coupling Assemblies”
S.B. 469 Bendix Magneto Bulletin No. 627, “Distributor Block Kit P/N 10-682056 (6 cyl.) Dual Magneto Series”
S.B. 470 Bendix Magneto Bulletin No. 628, “Replacement of Impulse Coupling Main Spring P/N 10-382941”
S.B. 474 Bendix Magneto Bulletin No. 629, “Insp. & Repl. of Brown Mag. Blocks on Turbocharged (6 cyl.) Engines”
S.B. 365 Bendix Magneto Conversion to Incorporate Flexible Drive
S.I. 1346A Bendix S4LN-1208 Magnetos, Installation of
S.L. L188 Black Oxide Finish, Cylinders Treated with
S.L. L196 Blade, Screwdriver, ST-418-3, Revision to
S.I. 1352A Body Disassembly, Hydraulic Lifter
S.I. 1336 Body Identification, Tappet
S.I. 1307B Bolt Assembly, Connecting Rod, and Torque Application
S.I. 1209B* Bolt Replacement, Crankshaft Flange (A.D. #80-04-04)
S.I. 1459 Bolt Threads, Application of Sealant
S.I. 1450 Bolt, Connecting Rod and Torque Application, Alternate
S.I. 1170 Bolt, Generator Mounting, Replacement
S.B. 372B Bolt, T, High-Tensile Clamping Bands
S.I. 1469 Bolts, Connecting Rod with High-Tensile Strength
S.I. 1213 Bolts, Connecting Rod, Increased Torque Value
S.B. 363 Bolts, Connecting Rod, Part Number Listing PC-206: IO-360 Series Engines
S.I. 1458B Bolts, Connecting Rod
S.I. 1318 Bolts, Connecting Rod, Strengthened
S.I. 1029D Bolts, Crankcase, Tightening Procedures for Thru-Studs and (Refer to Supplement No. 1 and No. 2 to
S.I. 1029D)
S.I. 1248B Bolts, Engine Mounting Bracket Attaching
S.I. 1380* Bolts, Engine Mounting Bracket Attaching Nuts or (A.D. #79-10-03)
S.B. 491A* Bolts, Exhaust Transition, Inspection of (A.D. #91-10-04)
S.B. 371B* Bolts, High-Tensile Strength, Connecting Rod Assys. (New Rod Kits) (A.D. #73-05-01)
S.I. 1323A Bolts, High-Tensile Strength, Connecting Rods with
S.I. 1311A Bolts, Oversize Connecting Rod
S.I. 1417 Bore Repair, Crankcase Gear Shaft
S.I. 1377 Bore Repair, Crankcase Main Bearing, and Oversize Main Bearings (Refer to Supplement No. 1 to S.I. 1377)
S.I. 1334A Bore Repair, Crankcase Tappet
S.I. 1315A Bracket and Clamp Installation, Turbocharger Strut
S.I. 1248B Bracket Attaching Bolts, Engine Mounting
S.I. 1380* Bracket Attaching Nuts or Bolts, Engine Mounting (A.D. #79-10-03)
S.I. 1306A Bracket Installation, Compressor Mounting
S.B. 356 Bracket, Addition of Alternator Support – TIO-540-A2C
S.B. 511 Bracket, Alternator Installation
S.I. 1270A Bracket, Alternator Mounting, Shims
S.I. 1339A Bracket, Turbocharger
S.B. 463 Bracket, Turbocharger Mounting, Inspection
S.I. 1105A Brackets, Generator/Alternator Mounting, Periodic Inspection
S.I. 1397 Breather Fitting, Overflow Oil from, of Inverted Oil System
S.L. L208 Breather Options for Aerobatic Engines
S.I. 1366A Bushing Hole, Rocker Shaft, Repair Procedure for Worn
S.I. 1098G Bushing Location, Propeller Flange
S.I. 1143B Bushing, Replacement of Counterweights and Bushing Tooling Update (Refer to Supplement No. 2 to
S.I. 1143B)
S.I. 1044 Bushing Replacement, Rear Crankshaft Spline
S.I. 1386A Bushing Magneto Drive Gear, Replacement of Damaged or Worn
S.I. 1142B Bushings, Crankshaft Counterweight, Replacement
* - Airworthiness Directives.
5
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1208 Bushings, Magneto Shaft Bore, Installation of
S.I. 1452 Bushings, Propeller Flange, Reindexing (O-360-C1G)
S.B. 253A Bushings, Replacement of Propeller Flange
S.I. 1316A Bypass Valve Seat, Oil Cooler, Repair of
S.I. 1214A Bypass Valve, Exhaust: Reset for Increased Critical Altitude
S.I. 1442 Bypass Valve, Oil Filter, Improved
S.I. 1423 Bypass Valve, Thermostatic Oil Cooler, P/N 75944
S.I. 1255 Bypass Valve, Thermostatic Oil Cooler, Replacement
S.B. 518C Bypass Valves, Thermostatic, Inspection of
S.I. 1008B Bypass, Thermostatic Oil Cooler, Instructions for Installation
S.I. 1294 Cable Routing, Alternate Ignition
S.L. L206A Cam Followers/Tappet Bodies, Field-Reconditioned
S.I. 1439 Camshaft and Gear Assembly, New Integral, Installation (Refer to Supplement No. 1 to S.I. 1439)
S.I. 1016C Camshaft and Gear Replacement – O & IO-540 Series
S.L. L214A Camshaft Exchange Program, Reconditioned (Notice of Discontinuance of Program)
S.I. 1218A Camshaft, With Integral Drive Gear, Parts Substitution Chart
S.B. 293B* Camshaft, Installation of New (A.D. #63-23-02)
S.I. 1182A Camshaft, Modified for Improved Performance – GO-480 Series
S.I. 1350A Camshaft, Redesigned, for HIO-360-D1A Engines
S.I. 1263B Camshaft, Redesigned, for IO-360 Series Engines
S.I. 1359 Cap Modification, Connecting Rod
S.I. 1002 Carburetor Air Filters, Proper Maintenance
S.I. 1206 Carburetor Float Clearance, Checking
S.I. 1148B Carburetor Heat Control, Use of
S.I. 1390 Carburetor Idle Tube Replacement
S.I. 1428 Carburetor Modification for Richer Power Setting – O/LO-360-A
S.I. 1393 Carburetor Modification Kit
S.I. 1398A Carburetor Modification, Marvel-Schebler – O-540
S.I. 1421 Carburetor Modification, Marvel-Schebler – TO-360
S.I. 1271A Carburetor Nozzle Replacement – O-235
S.I. 1395A Carburetor Nozzle Replacement – O-320-D2A
S.I. 1305C Carburetor Nozzle Replacement – O-320-E2A, -E2D, -E2G, -E3D
S.I. 1484 Carburetor or Fuel Injector Servo Unit Hold Down Nuts, Installation Torque for Fuel Metering Device
S.B. 409* Carburetor Replacement (A.D. #77-13-16)
S.B. 258 Carburetor Setting Change to Eliminate Engine Roughness – Piper Aircraft
S.B. 330B* Carburetor Throttle Arm Screw, Retighten and Lockwire (A.D. #72-06-05)
S.B. 366 Carburetor Throttle Body Screw Inspection
S.I. 1161 Carburetor Throttle Shaft, Modification to Prevent Leakage
S.B. 504* Carburetor, Consolidated Fuel Systems Inc. Bulletin No. CF1-92, Rev. 1, “Carburetor Float Kit CF666-915”
(A.D. #93-10-04)
S.B. 481 Carburetor, Facet Aerospace Products Bulletin No. A1-87, “Carburetor Return and Inspection”
S.B. 483 Carburetor, Facet Aerospace Products Bulletin No. A1-88, “Possible Loose 62-226 Pins”
S.L. L186 Carburetor, Marvel-Schebler Bulletin No. A1-76, “Carburetor Cleaning”
S.I. 1370 Carburetor, Marvel-Schebler Bulletin No. A1-78, “Carburetor Mixture Control Retainer”
S.B. 434* Carburetor, Marvel-Schebler Bulletin No. A1-79, “Improved Sealing of Economizer Channel HA-6
Carburetors” (A.D. #79-15-02)
S.I. 1413 Carburetor, Marvel-Schebler Bulletin No. A1-81, “Model HA Carburetor Float Shaft and Bracket Wear”
S.I. 1373 Carburetor, Marvel-Schebler Bulletin No. A2-78, “Sealing Pump and Economizer Rods”
S.B. 436* Carburetor, Marvel-Schebler Bulletin No. A2-79, “Possible Carburetor Contamination” (A.D. #79-08-06)
S.B. 310 Carburetor, Marvel-Schebler Bulletin No. A3-66, “Replacement of Venturi”
S.B. 297A* Carburetor, Marvel-Schebler MA-4-5, One Piece and Main Venturi (A.D. #63-22-03)
S.I. 1212 Carburetor, Marvel-Schebler with Accelerator Pump – O-235-C Series
S.B. 352 Carburetor, Marvel-Schebler/Tillotson Bulletin No. 1-71, “Securing Cam Lever”
* - Airworthiness Directives.
6
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 495A Carburetor, Precision Airmotive Corp. Bulletin No. MSA-1, Rev. 1, “Replacement of Composit Floats with
Metal Floats”
S.B. 498B Carburetor, Precision Airmotive Corp. Bulletin No. MSA-2, Rev. 2, “One Piece Primary and Main Venturi”
S.B. 327C* Center Main Bearing Inspection (A.D. #’s 71-05-02 & 72-21-06)
S.I. 1418 Chamber Cleaning Procedure, Combustion
S.I. 1403 Champion Bulletin No. 75-4, “Approved Spin-On Oil Filters”
S.L. L237 Change in Telephone Area Code for Textron Lycoming, Williamsport, PA
S.I. 1500 Change, Counterweight Roller for Robinson Helicopter
S.I. 1315A Clamp and Bracket Installation, Turbocharger Strut
S.B. 342D* Clamp Inspection and Installation, Support, and Fuel Line (A.D. #92-12-10)
S.B. 372B Clamping Bands, High-Tensile T-Bolts
S.I. 1355 Clamps and Extensions, Intake Pipes
S.I. 1361 Clamps, T-Bolt Hose
S.I. 1116C Clearance Modification, Exhaust Valve to Guide
S.I. 1206 Clearance, Checking Carburetor Float
S.I. 1487 Clearance, Oil Drainback Tube
S.B. 530A* Coating, Protective, Application on Crankshaft (A.D. #98-02-08)
S.I. 1392 Cold Weather Operation and Engine Lubricating Oil Recommendations
S.I. 1181 Color Code on Cylinder for Avco Lycoming Engines
S.I. 1418 Combustion Chamber Cleaning Procedure
S.I. 1191A Compression, Cylinder
S.I. 1306A Compressor Mounting Bracket Installation
S.I. 1232 Compressor Mounting Plate Assembly Procedure – TIGO-541
S.B. 344 Compressor Mounting Plate Assembly Procedure – TIO & TIGO-541
S.I. 1192 Compressor, No. ST-266, Valve Spring
S.I. 1451A Compressor, Starter and Alternator Installation
S.I. 1466 Connecting Rod Assemblies
S.I. 1467 Connecting Rod Assemblies
S.B. 302A* Connecting Rod Assemblies, P/N’s 74308 & 74503, Replacement in IO-360-A1A Engines (A.D. #66-06-03)
S.B. 371B* Connecting Rod Assembly with High-Tensile Strength Bolts (New Rod Kits with High-Crush Bearings) (A.D.
#73-05-01)
S.B. 547 Connecting Rod Bearing Replacement on TIO-540-AE2A Model Engines
S.I. 1450 Connecting Rod Bolt and Torque Application, Alternate
S.I. 1307B Connecting Rod Bolt Assembly and Torque Application
S.I. 1106D Connecting Rod Bolt Nut Crimping Requirements
S.B. 363 Connecting Rod Bolt Part Number Listing – PC-206: IO-360 Series Engines
S.I. 1213 Connecting Rod Bolts, Increased Torque Value
S.I. 1311A Connecting Rod Bolts, Oversize
S.I. 1458B Connecting Rod Bolts
S.I. 1318 Connecting Rod Bolts, Strengthened
S.I. 1359 Connecting Rod Cap Modification
S.I. 1469 Connecting Rod with High-Tensile Strength Bolts
S.B. 351B* Connecting Rods (Heavy) for High Speed Geared Drive Engines (A.D. #74-13-05)
S.I. 1323A Connecting Rods with High-Tensile Strength Bolts
S.B. 439A Connecting Rods, Inspection for Fretting and/or Galling, Repair of Fretting
S.I. 1138B Connecting Rods, Replacement for IO-720 Series Engines
S.B. 504* Consolidated Fuel Systems, Inc. Bulletin No. CF1-92, Rev. 1, “Carburetor Float Kit CF666-915” (A.D.
#93-19-04)
S.I. 1435 Constant Speed to Fixed Pitch Propeller Conversion, and Vice Versa (Refer to Supplement No. 1 to S.I. 1435)
S.B. 418 Control Cable Rod End Replacement Waste Gate
S.I. 1211D Controller Linkage and Fuel Injector Setting
S.B. 440 Controller, AiResearch Bulletin No. TP60-0115, “Spring Pin Replacement”
S.I. 1187J Controller, Density, Turbocharger Adjustment
S.I. 1474 Controller, Differential Pressure, Improved for TIO-540-AF1A Engine Model
S.L. L231 Controller, Variable Absolute, Pressure Calibration Values for AiResearch Turbo Control Test Set
P/N 481070-1
* - Airworthiness Directives.
7
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1463 Controllers, Improved for TIO-540-AE2A Engine Model
S.I. 1435 Conversion from Constant Speed to Fixed Pitch Propeller and Vice Versa (Refer to Supplement No. 1 to
S.I. 1435)
S.L. L204 Conversion Kit P/N LW-18866, Fuel Injection
S.B. 246 Conversion of GO-435-C2B and –C2B2 to GO-435-C2B-6 and –C2B2-6
S.L. L156 Conversion of O-290-G Surplus Power Plant Engines to O-290-D Engines (FAA Release No. 462)
S.I. 1246A Conversion, Engine, for Use of 100/130 Grade Fuel
S.I. 1383 Conversion, Starter
S.I. 1453 Converter Plate Gasket, Oil Filter, Replacement of
S.B. 543A* Converter Plate Gasket, Oil Filter, Replacement (Refer to Supplement No. 1 to S.B. 543A) (A.D. #2000-18-53)
S.L. L216 Copyright of Avco Lycoming Williamsport Publications
S.B. 394 Corner Radii, Counterweight Inspection
S.I. 1142B Counterweight Bushings, Crankshaft, Replacement
S.B. 394 Counterweight Inspection for Corner Radii
S.I. 1152A Counterweight Lobes, Crankshaft, Punch Marks
S.I. 1500 Counterweight Roller Change for Robinson Helicopter
S.B. 245D Counterweight System, Dynamic Detuning
S.L. L217 Counterweight Tooling Update Kits
S.B. 333 Counterweight, Inspection and Replacement
S.I. 1143B Counterweights, Bushing Replacement and Tooling Update (Refer to Supplement No. 2 to S.I. 1143B)
S.I. 1012F Counterweights, Location and Proper Assembly Procedure
S.I. 1130 Counterweights, Marking or Identifying
S.I. 1330A Coupling, Alternator Drive, Spring Loaded – TIGO-541-E
S.B. 395 Coupling, Transition, Replacement
S.B. 492A Couplings, Redesigned V-Band, for Tailpipe Installation
S.I. 1238A Couplings, V-Band, Assembly and Torque Procedures
S.I. 1394 Cover Assy., Accessory Housing, Modification to Retrofit Hollow Oil Transfer Dowel
S.I. 1171 Covers and Accessory Housings, Salvage of
S.L. L228 Cracking of Cylinder Head Exhaust Port
S.I. 1225D Crankcase Bearing Dowel Replacement
S.B. 326A* Crankcase Bearing Dowel Replacement (A.D. #’s 71-05-02 & 72-21-06)
S.I. 1149 Crankcase Bearing Support Web, Inspection & Modification
S.B. 273A Crankcase Center Main Bearing Support, Modification to Incorporate Body Fit Thru-Studs
S.I. 1417 Crankcase Gear Shaft Bore Repair – (Dual Magnetos)
S.I. 1377 Crankcase Main Bearing Bore Repair and Oversize Main Bearings (Refer to Supplement No. 1 to S.I. 1377)
S.I. 1159 Crankcase Modification to Prevent Reduction Gear Housing Interference
S.I. 1312 Crankcase P/N LW-13082, Propeller Drive Thrust Bearing Replacement
S.I. 1125B Crankcase Parting Surface Sealants, Alternate
S.I. 1326 Crankcase Repair (Thru-Stud Spotface)
S.B. 353A Crankcase Replacement – TIO-541-E Series
S.I. 1334A Crankcase Tappet Bore Repair
S.I. 1290E Crankcase Thru-Stud Locations, Repair of Oil Leakage, Assembled and Unassembled Engines
S.I. 1029D Crankcase Thru-Studs and Bolts, Tightening Procedures (Refer to Supplement No. 1 and No. 2 to S.I. 1029D)
S.I. 1354B Crankcase Thrust Face Repair
S.I. 1177B Crankcase, Governor Drive Bearing Repair
S.I. 1185 Crankcase, Interference Between Crankshaft and
S.B. 392B Crankcase, Reinforced – TIO/LTIO-540 (Refer to Supplement No. 2 to S.B. 392B)
S.I. 1140 Crankcase, Salvage Repair of Magneto Bearing Recess
S.I. 1406B Crankcases with Provision for Large Diameter Hydraulic Lifters
S.I. 1432A Crankcases without Retention Dowels, Installation of High-Crush, Thin-Wall, Rear Main Bearings in
S.B. 472 Crankcases, Disassembly of Wide Cylinder Flange
S.I. 1112E Crankcases, Repair of Fretted (Refer to Supplement No. 1 to S.I. 1112E)
S.I. 1345 Crankcases, Service Replacement for Narrow Cylinder Flange Four Cylinder Engines
S.I. 1465 Crankshaft Assemblies for Non-Counterweighted Engine Models
* - Airworthiness Directives.
8
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 422A* Crankshaft Assembly Replacement (A.D. #78-12-09)
S.I. 1113A Crankshaft Assembly, Revised to Eliminate Sludge Tubes
S.I. 1296 Crankshaft Attaching Parts and Drive Plates
S.B. 272A Crankshaft Center Main Journal, Retorquing of Thru-Studs to Assure Positive Clearance
S.I. 1142B Crankshaft Counterweight Bushings, Replacement
S.I. 1152A Crankshaft Counterweight Lobes, Punch Marks
S.B. 549 Crankshaft/Engine Inspection (Refer to Supplement No. 1 to S.B. 549)
S.B. 482 Crankshaft Flange Area Cracking
S.I. 1209B* Crankshaft Flange Bolt Replacement (A.D. #80-04-04)
S.B. 465C* Crankshaft Flange Inspection for Aerobatic Engines (A.D. #84-13-05)
S.I. 1473 Crankshaft Flange Thickness, Standardization
S.B. 201E Crankshaft Flanges, Inspection and Straightening of Bent
S.I. 1251 Crankshaft Flange Oil Plug, Parts Catalog PC-111 & PC-112 Listing
S.I. 1180B Crankshaft Front Plug – HIO-360 Series
S.B. 475B* Crankshaft Gear Modification and Assembly Procedures (A.D. #91-14-22)
S.I. 1331A Crankshaft Gear Replacement – TIO & TIGO-541 Series
S.B. 505B Crankshaft ID, Inspection for Corrosion
S.I. 1205 Crankshaft Journal Diameters, Standards, for
S.I. 1333 Crankshaft Listing: Catalog PC-206
S.I. 1020B Crankshaft Main Bearing Replacement
S.I. 1111 Crankshaft Oil Seal Surface, Recondition of Worn
S.I. 1324A Crankshaft Oil Seals
S.B. 300B* Crankshaft Propeller Flange Inspection (A.D. #65-03-03)
S.B. 222D Crankshaft Renitriding Recommendations
S.I. 1044 Crankshaft Spline Bushing Replacement, Rear
S.L. L202B Crankshaft with Lightning Holes, All 320, 360 and 540 Series Engines Using, Installed in Aircraft Used for
Aerobatic Maneuvers
S.B. 530A* Crankshaft, Application of Protective Coating (A.D. #98-02-08)
S.I. 1185 Crankshaft, Interference Between Crankcase and
S.I. 1012F Crankshaft, Proper Assembly Procedure of Counterweights and Rollers
S.I. 1130 Crankshafts, Marking or Identifying
S.I. 1106D Crimping Requirements, Connecting Rod Bolt Nut
S.B. 484* Crossover Exhaust Assembly, Inspection, Alignment and Modification of (A.D. #89-12-04)
S.I. 1299A Cushion and Magneto Drive Gear Modification
S.B. 334C Cylinder Assemblies, Replacement
S.I. 1504 Cylinder Assembly Inspection/Replacement on O-235 Engines
S.L. L159D Cylinder Barrel Repair, Facilities for
S.B. 213A Cylinder Base Allen Head Nuts, Replacing Cylinder Base Spline Nuts with
S.B. 213A Cylinder Base Spline Nuts, Replacing with Cylinder Base Allen Head Nuts
S.I. 1191A Cylinder Compression
S.L. L220B Cylinder Flange Engines, Non-Availability of New Standard
S.B. 507 Cylinder Head Assembly, Missing Spotfaces on P/N 74218
S.L. L228 Cylinder Head Exhaust Port, Cracking of
S.I. 1135A Cylinder Head Inspection, Repair and Modification
S.B. 348A Cylinder Head, Clearance Between Valve Rocker and
S.I. 1228A Cylinder Hold-Down Plates, Modification of
S.B. 520 Cylinder Kits P/N 05K21108, P/N 05K21118 and P/N 05K21104, Shipped with Incorrect Piston
S.I. 1297 Cylinder Modification for Shroud Tubes with Helical Spring Retention
S.B. 271A Cylinder Painting
S.L. L188 Cylinders Treated with Black Oxide Finish
S.I. 1037L Cylinders, Approved for Use in Textron Lycoming Aircraft Engines
S.I. 1181 Cylinders, Color Code for Avco Lycoming Engines
S.I. 1047B Cylinders, Inspection and Reconditioning Procedures for Nitride Hardened Steel
S.I. 1136A Cylinders, Parallel Valve, Exhaust Valves with ½” Diameter Stems and Ni-Resist Guides (Refer to Supplement
No. 1 to S.I. 1136A)
* - Airworthiness Directives.
9
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1075A Cylinders, Top Exhaust, Procedure for Removing Push Rods and Shroud Tubes
S.I. 1187J Density Controller Adjustment, Turbocharger
S.B. 245D Detuning, Dynamic Counterweight System
S.B. 548 Diaphragm-Type Fuel Pump Inspection/Replacement
S.I. 1446* Diaphragm, Pressure Regulator, Possible Ruptured, in AN Fuel Pump (A.D. #91-08-07)
S.B. 472 Disassembly of Wide Cylinder Flange Crankcases
S.L. L200 Disclaimer Statement
S.L. L226 Discoloration, LW-16702 Oil Additive
S.I. 1344 Dowel Hole Repair, Propeller Flange
S.I. 1298 Dowel Removal, Engine Mounting
S.I. 1225D Dowel, Crankcase Bearing, Replacement
S.I. 1123D Dowel, Installation of P/N 75302 at Thru-Stud Locations
S.I. 1394 Dowel, Oil Transfer, Modification to Retrofit Hollow, on Accessory Housing & Cover Assy.
S.I. 1503 Dowel, Shaft and Accessory Drive Gear Replacement
S.B. 426* Drain Flange Replacement, Turbocharger Oil (A.D. #80-02-13)
S.B. 534 Drain Tank, Oil, Turbocharger, Inspection/Replacement
S.I. 1399 Drain Tube Replacement, Turbocharger Oil
S.I. 1487 Drainback Tube, Oil, Clearance
S.I. 1264 Drains, Moisture, Addition in Magneto Cover
S.I. 1158 Drive Adapter, Magneto, Replacement
S.I. 1144 Drive Assy. (64894), Use & Maintenance of 4-Lug Test, with Vertical Test Stand (64765)
S.I. 1239 Drive Assy., Starter, Replacement
S.I. 1177B Drive Bearing Repair, Governor, in Crankcase
S.I. 1330A Drive Coupling, Alternator, Spring Loaded – TIGO-541-E
S.I. 1351 Drive Gear and Drive Shaft, Accessory
S.I. 1386A Drive Gear Bushing, Magneto, Replacement of Damaged or Worn
S.I. 1118A Drive Gear Replacement, Starter
S.I. 1503 Drive Gear, Accessory and Shaft Dowel Replacement
S.I. 1387 Drive Gear, Governor, Replacement of
S.I. 1218A Drive Gear, Integral, Parts Substitution Chart for Camshaft with
S.I. 1360 Drive Gear, Magneto
S.I. 1299A Drive Gear, Magneto, and Cushion Modification
S.I. 1242A Drive Gear, Starter, Thrust Washers for
S.I. 1278 Drive Lubrication, Starter
S.I. 1287 Drive Modification, Starter: Cold Weather Starting
S.I. 1376 Drive Pin Replacement, Starter
S.I. 1296 Drive Plate and Crankshaft Attaching Parts
S.I. 1084A Drive Shaft and Components, Intermediate Supercharger
S.I. 1338 Drive Shaft Modification, Hydraulic Pump
S.I. 1145 Drive Shaft, Accessory, Modification to Incorporate, with Larger Spline Drive
S.I. 1420 Drive Spline Lubrication, Fuel Pump
S.B. 411B Drive, Magneto Isolation, Adapter Kit
S.I. 1203 Driveshaft Adapter Assembly, Accessory, Installation of Improved
S.I. 1221A Dry Air Pump Drive Oil Seal Replacement
S.B. 113 Dry Sump Test Stand Installation of Lycoming Opposed Series Engines
S.L. L172B EGME, Ethylene Glycol Monomethyl Ether, Fuel Additive
S.I. 1276 Electrical Components, Bendix Bulletin No. 529A, “Torque Values for Drive Shaft Nut”
S.I. 1427B Engine Break-In and Oil Consumption Test Limits
S.L. L114AK Engine and Accessory Maintenance Publications
S.I. 1246A Engine Conversion for Use of 100/130 Grade Fuel
S.B. 549 Engine/Crankshaft Inspection (Refer to Supplement No. 1 to S.B. 549)
S.L. L193 Engine Firing Order
S.B. 357 Engine Inspection in Event of Immersion
S.B. 547 Engine Model TIO-540-AE2A, Connecting Rod Bearing Replacement
* - Airworthiness Directives.
10
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1463 Engine Model TIO-540-AE2A, Improved Controllers
S.I. 1408A Engine Mount Replacement
S.I. 1248B Engine Mounting Bracket Attaching Bolts
S.I. 1304J Engine Nameplate Replacement
S.L. L109 Engine Operation, Suggestions for Better
S.L. L142B Engine Performance, Policy Relative to Alterations
S.L. L180A Engine Preservation for Active and Stored Aircraft
S.I. 1481 Engine Preservation, Factory
S.I. 1497 Engine Procedures for Flight Training
S.I. 1498 Engine Procedures for Purging Vapor During Ground Operations, Recommended
S.I. 1241C Engine Start, Pre-Oiling Prior to Initial
S.I. 1287 Engine Starting, Cold Weather: Starter Drive Modification
S.I. 1362 Engine Starting, Hard
S.B. 349 Engine Starting, Relocating Fuel Drain Valve to Improve
S.B. 533A* Engine Stoppage, Recommendations Regarding Accidental (A.D. #91-14-22)
S.I. 1437 Engine Timing Marks
S.I. 1472 Engine, Removal of Preservative Oil
S.L. L202B Engines Installed in Aircraft Used for Aerobatic Maneuvers, All 320, 360 and 540 Series Using Crankshaft
with Lightning Holes
S.L. L220B Engines, Non-Availability of New Standard Cylinder Flange
S.L. L154B Engines, Ordering and/or Special Adjustment Consideration for Returned or Run-Out
S.I. 1504 Engines, O-235, Cylinder Assembly Inspection/Replacement
S.I. 1506 Engines, 4-Cylinder, Replacement of Impulse Coupling Magnetos
S.B. 484* Exhaust Assembly, Crossover, Inspection, Alignment and Modification of (A.D. #89-12-04)
S.I. 1214A Exhaust Bypass Valve: Reset for Critical Altitude
S.I. 1204B Exhaust Flange Gaskets
S.I. 1363 Exhaust Manifold Ball Joint and Retaining Strap – TO-360-C1A6D
S.I. 1320 Exhaust Manifold Components, Tightening Procedure
S.I. 1410 Exhaust Manifold Pipe Improvement
S.I. 1391 Exhaust Manifold Tube Alignment
S.I. 1190 Exhaust Manifold Tube Modification
S.B. 499C* Exhaust Pipe Kit (05K21503), One-Piece, Installation of (A.D. #91-21-01)
S.B. 479 Exhaust Pipe, Inspection of P/N 77429 Right Intermediate, and Exhaust Slip Joint Modification
S.L. L228 Exhaust Port, Cracking of Cylinder Head
S.B. 393C Exhaust Slip Joint Modification – TIGO-541-E Series
S.B. 479 Exhaust Slip Joint Modification and Inspection of P/N 77429 Right Intermediate Exhaust Pipe – TIO-541-E
Series
S.B. 435* Exhaust Spring Seat, Upper, Replacement of Hydraulic Lifter and (Refer to Supplement No. 1 and No. 2 to
S.B. 435) (A.D. #80-04-03)
S.I. 1422A Exhaust System Inspection (EGT Probe Depth)
S.B. 521 Exhaust System Slip Joints, Inspection for Proper Engagement and Inspection of Marmon Flange Joint at
Transition Inlet
S.B. 491A* Exhaust Transition Bolts, Inspection of (A.D. #91-10-04)
S.I. 1485 Exhaust Valve and Guide Identification Procedure
S.B. 388B Exhaust Valve and Guide, Procedure to Determine Condition (Refer to Supplement No. 1 to S.B. 388B)
S.I. 1342 Exhaust Valve Guide Clearance, Increased
S.I. 1479A Exhaust Valve Guide Kit, Oil Cooled, TIO-540-AF1A
S.B. 503 Exhaust Valve Guide Replacement on TIO-540-AF1A Engines
S.I. 1200A Exhaust Valve Guide, Honing During Replacement
S.B. 490A Exhaust Valve Guides, and Intake, Installation of
S.B. 293B* Exhaust Valve Guides, Inspection of (A.D. #63-23-02)
S.B. 404 Exhaust Valve Inspection (High Lead Fuel Operation)
S.I. 1430 Exhaust Valve Replacement – All with P/N 73111 Exhaust Valves
S.B. 419 Exhaust Valve Replacement – TO-360
* - Airworthiness Directives.
11
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1268C Exhaust Valve Rocker Assy.
S.I. 1468A Exhaust Valve Rocker Assy.
S.I. 1381 Exhaust Valve Spring Seats, Upper, and Hydraulic Lifter, Replacement
S.B. 447B* Exhaust Valve Spring Seats, Inspection (A.D. #80-14-07)
S.I. 1116C Exhaust Valve to Guide Clearance Modification
S.L. L213A Extension Kit, Time Between Overhaul (TBO)
S.I. 1355 Extensions and Clamps, Intake Pipe
S.I. 1354B Face Repair, Crankcase Thrust
S.B. 481 Facet Aerospace Products Service Bulletin No. A1-87, “Carburetor Return and Inspection”
S.B. 483 Facet Aerospace Products Service Bulletin No. A1-88, “Possible Loose 62-226 Pins”
S.L. L159D Facilities for Cylinder Barrel Repair
S.I. 1481 Factory Engine Preservation
S.L. L206A Field-Reconditioned Tappet Bodies/Cam Followers
S.B. 545 A Filler Tube, Oil, Replacement
S.I. 1169C Filter Assy., Oil, Inspection and Replacement
S.B. 466 Filter Base Adapter, Oil, Inspection
S.B. 480D Filter Change, and Oil, and Screen Cleaning
S.B. 337A Filter Housing, Oil, and Bolt Modification
S.I. 1457 Filter Kit, Remote Mount Oil, Textron Lycoming
S.L. L183 Filter Lubricants, Spin-On
S.I. 1186 Filter Screen, Removal from Fuel Injector Nozzle
S.B. 480D Filter/Screen, Oil, Content Inspection
S.I. 1002 Filters, Carburetor Air, Proper Maintenance
S.I. 1109 Filters, Fuel and Oil, Procedure for Cleaning Simmonds Fuel Injector
S.I. 1079B Filters, Fuel Line Servo, Periodic Maintenance
S.B. 431 Fire Sleeve, Teflon Fuel Hoses with
S.L. L193 Firing Order, Engines
S.I. 1062 Fitting “T”, Maintenance Procedures for the Fuel Vent Return
S.B. 494* Fittings, Restricted Fuel Pump Vent, Installation of (A.D. #91-08-07)
S.B. 497* Fittings, Restricted Fuel Pump Vent, New, Installation in AN Drive (A.D. #91-08-07)
S.I. 1435 Fixed Pitch to Constant Speed Propeller Conversion, and Vice Versa (Refer to Supplement No. 1 to S.I. 1435)
S.B. 482 Flange Area, Cracking, Crankshaft
S.I. 1209B* Flange Bolt Replacement, Crankshaft (A.D. #80-04-04)
S.I. 1098G Flange Bushing Location, Propeller
S.I. 1452 Flange Bushings, Propeller, Reindexing (O-360-C1G)
S.B. 253A Flange Bushings, Replacement of Propeller
S.I. 1344 Flange Dowel Hole Repair, Propeller
S.I. 1204B Flange Gaskets, Exhaust
S.B. 521 Flange Joint, Marmon, Inspection at Transition Inlet and Inspection of Exhaust System Slip Joints for Proper
Engagement
S.B. 426* Flange Replacement, Turbocharger Oil Drain (A.D. #80-02-13)
S.I. 1473 Flange Thickness, Crankshaft, Standardization
S.B. 465C* Flange, Crankshaft, Inspection for Aerobatic Engines (A.D. #84-13-05)
S.B. 300B* Flange, Inspection of Crankshaft Propeller (A.D. #65-03-03)
S.I. 1345 Flange, Narrow Cylinder, Service Replacement Crankcases for Four Cylinder Engines
S.B. 201E Flanges, Inspection and Straightening of Bent Crankshaft
S.I. 1497 Flight Training, Engine Procedures for
S.I. 1206 Float, Carburetor, Checking Clearance
S.I. 1486A Flow Divider and Fuel Injector Replacement
S.I. 1502A Flow Divider, Inverted, Installation of
S.L. L192B Fouling, Spark Plug
S.I. 1112E Fretted Crankcases, Repair of (Refer to Supplement No. 1 to S.I. 1112E)
S.B. 439A Fretting, Inspection and Repair of Connecting Rod
S.L. L190 Fuel Additive, Use of “TCP”
* - Airworthiness Directives.
12
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.L. L172B Fuel Additive, Use of Ethylene Glycol Monomethyl Ether (EGME) such as “Prist”
S.L. L221B Fuel Control Components, Precision, Warranty Repair of (Refer to Supplement No. 1 to S.L. L221B)
S.B. 384 Fuel Drain Check Valve Modification
S.B. 349 Fuel Drain Valve, Relocating to Improve Engine Starting
S.I. 1109 Fuel Filters, Procedures for Cleaning Simmonds Fuel Injector
S.I. 1069A Fuel Flow, Procedure for Inspection & Adjustment to Regulate, on Simmonds Model No. 580 Fuel Injector
S.I. 1274B Fuel Hoses, Silicone Coated, Service Replacement
S.B. 431 Fuel Hoses, Teflon with Fire Sleeve
S.L. L204 Fuel Injection Conversion Kit P/N LW-18866
S.I. 1455 Fuel Injection Manifold Kit P/N 05K21433, Installation
S.I. 1072 Fuel Injection Nozzles for Simmonds No. 530 Fuel Injection System
S.I. 1040A Fuel Injection System, Simmonds No. 530, Maintenance Procedures
S.I. 1211D Fuel Injector and Controller Linkage Setting
S.I. 1486A Fuel Injector and Flow Divider Replacement
S.I. 1484 Fuel Injector or Carburetor Servo Unit Hold Down Nuts, Installation Torque for Fuel Metering Device
S.I. 1491 Fuel Injector Check
S.I. 1301A Fuel Injector Lines, Identification
S.B. 331 Fuel Injector Lines, Inspection and Removal of Rubber Sleeve
S.I. 1026 Fuel Injector Mixture Control Installation Procedure, Simmonds Model 580
S.B. 510 Fuel Injector Nozzle Assys., Recall, Precision Airmotive Corp. Bulletin No. PRS-101 (Refer to Supplement
No. 1 to S.B. 510)
S.I. 1186 Fuel Injector Nozzle, Removal of Filter Screen
S.I. 1275B Fuel Injector Nozzles, Cleaning
S.I. 1231 Fuel Injector Nozzles, Torque Requirement – TIO & TIGO-541 Series
S.B. 305B* Fuel Injector, Bendix Bulletin No. 18, Rev. 4, “Replacement of Fuel Diaphragm Assy.” (A.D. #67-22-06)
S.I. 1166A Fuel Injector, Bendix Bulletin No. 20, Rev. 2, “Identifying Fuel to Air Seal Leak”
S.I. 1244 Fuel Injector, Bendix Bulletin No. RS-35, “Changes – Regulator & Fuel Control System”
S.I. 1247 Fuel Injector, Bendix Bulletin No. RS-37, “Replacement of Idle Valve Lever Assy.”
S.B. 382* Fuel Injector, Bendix Bulletin No. RS-43, “Inspection and Modification of Flow Dividers” (A.D. #75-09-15)
S.B. 428* Fuel Injector, Bendix Bulletin No. RS-52, “Mod. of RSA-5AB1, RSA-5AD1 & RSA-10AD1” (Refer to
Supplement No. 1 to S.B. 428) (A.D. #78-23-10)
S.B. 429* Fuel Injector, Bendix Bulletin No. RS-53, “Modification of RSA-7AA1” (A.D. #78-23-10)
S.B. 430* Fuel Injector, Bendix Bulletin No. RS-54, “Mod. of RSA-10DB1, RSA-10DB2 & RSA-10ED1” (Refer to
Supplement No. 1 to S.B. 430) (A.D. #78-23-10)
S.B. 433A* Fuel Injector, Bendix Bulletin No. RS-57, Rev. 1, “Inspection of Fuel Diaphragm Assy. P/N 2529471”
(A.D. #79-04-05)
S.B. 444A* Fuel Injector, Bendix Bulletin No. RS-62, Rev. 2, “Modification of Mixture Control Shaft Assy.”
(A.D. #81-03-05)
S.B. 445 Fuel Injector, Bendix Bulletin No. RS-63, “Inspection of Fuel Diaphragm Assy.”
S.B. 441 Fuel Injector, Bendix Bulletin No. RS-66, “Modification of Idle Valve Assy.”
S.B. 442* Fuel Injector, Bendix Bulletin No. RS-68, “Integrity Inspection of Regulator Stem Nut” (Refer to Supplement
No. 1 to S.B. 442) (A.D. #’s 79-21-08 & 79-26-03)
S.B. 443* Fuel Injector, Bendix Bulletin No. RS-69, “Integrity Inspection of Regulator Stem Nut” (A.D. #79-21-08)
S.I. 1414A Fuel Injector, Bendix Bulletin No. RS-77, Rev. 1, “Air Bleed Nozzle, RS & RSA Fuel Injection Systems, Two
Piece Assy.”
S.B. 467* Fuel Injector, Bendix Bulletin No. RS-88, “Deter. of Fuel Diaphragm Change” (Refer to Supplement No. 1 and
No. 2 to S.B. 467) (A.D. #83-22-04)
S.I. 1404A Fuel Injector, Bendix Bulletin No. SSB-318, “Overhaul Periods for Bendix Fuel System Components”
S.I. 1335 Fuel Injector, Bendix Letter No. 22, “Mixture Control Maintenance”
S.I. 1445 Fuel Injector, Precision Airmotive Corp. Service Bulletin No. PRS-91, “Timing of the Power Enrichment Valve
Opening”
S.B. 485* Fuel Injector, Precision Airmotive Corp. Service Bulletin No. PRS-92, “Contamination” (A.D. #89-13-02)
S.B. 532 Fuel Injector, Precision Airmotive Corp. Service Bulletin No. PRS-103, “RSA-10 Fuel Diaphragm Assembly
Part Number 2541803” (Refer to Supplement No. 2 to S.B. 532)
* - Airworthiness Directives.
13
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1494 Fuel Injector, Precision Airmotive Service Information Letter No. SIL RS-45, “Rework Instructions for
RSA-5AD1 Fuel Injection Servo Installed on Slingsby T-3A”
S.I. 1069A Fuel Injector, Simmonds Model No. 580, “Procedure for Inspection & Adjustment to Regulate Fuel Flow”
S.I. 1378 Fuel Injectors and Carburetors, Overheating, Bendix Fuel Injector Bulletin No. SSB-317, “Preheating
Procedures”
S.L. L150T Fuel Injectors, Simmonds, Reconditioned
S.B. 342D* Fuel Line and Support Clamp Inspection and Installation (A.D. #92-12-10)
S.B. 421* Fuel Line Between Fuel Pump and Fuel Injector (IO-540-G1B5, -K1F5, -P1A5, -S1A5) (A.D. #78-23-08)
S.I. 1079B Fuel Line Filters, Servo, Periodic Maintenance
S.I. 1489 Fuel Manifold Spring Change
S.I. 1431 Fuel Metering and Turbocharger Linkage Adjustments (Refer to Supplement No. 1 to S.I. 1431)
S.I. 1484 Fuel Metering Device, Installation Torque, Carburetor or Fuel Injector Servo Unit Hold Down Nuts
S.I. 1094D Fuel Mixture Leaning Procedure
S.I. 1446* Fuel Pump (AN), Possible Ruptured Pressure Regulator Diaphragm (A.D. #91-08-07)
S.L. L218 Fuel Pump Adapters
S.I. 1420 Fuel Pump Drive Spline Lubrication
S.B. 374 Fuel Pump Inlet Inspection
S.B. 406A Fuel Pump Inspection, Titan
S.I. 1309 Fuel Pump Modification, Lear Siegler
S.B. 497* Fuel Pump Vent Fittings, New, Restricted, Installation in AN Drive (A.D. #91-08-07)
S.B. 494* Fuel Pump Vent Fittings, Restricted, Installation of (A.D. #91-08-07)
S.B. 487* Fuel Pump Vent Restriction (A.D. #89-15-10)
S.B. 525A* Fuel Pump, Inspection of High Pressure, P/N LW-15473 (A.D. #96-23-03)
S.B. 548 Fuel Pump, Inspection/Replacement, Diaphragm-Type
S.B. 496 Fuel Pump, Lear Romec Service Bulletin No. 101SB019, ‘Relief of Valve Diaphragm Replacement”
S.B. 529A* Fuel Pump, Lear Romec Service Bulletin No. 101SB020, “Torquing of Relief Valve Cover Screws”
(A.D. #98-18-12)
S.B. 500A Fuel Pump, Lear Romec Service Bulletin No. 3402, “Rotary Fuel Pump – Non-Conforming Regulating Valve
Diaphragm”
S.B. 506 Fuel Pump, Lear Romec Service Bulletin No. 3403, “Rotary Fuel Pump – Replacement of Regulator Valve
Diaphragm”
S.B. 539 A Fuel Pump, Lear Romec Service Bulletins No. RG9080-73-001, No. RG9570-73-001, and No. RG17980-
73-001, “Replacement of Valve Housing and Related Seals”
S.I. 1110C Fuel Pumps, AC, Replacement
S.B. 362A Fuel Vent Line Check Valve Installation
S.I. 1062 Fuel Vent Return, T Fitting, Maintenance Procedures
S.I. 1246A Fuel, Engine Conversion for Use of 100/130 Grade Fuel
S.L. L185B Fuel, Higher Octane Aviation, Use of 100LL for Engines Rated 80/87 Octane
S.L. L199 Fuel, Recommendations Regarding Use of
S.B. 398 Fuel, Recommendations Regarding Use of Incorrect
S.I. 1070L Fuels, Specified
S.B. 407A* Gage Assys., Oil Level (A.D. #77-07-07)
S.I. 1379 Gage Kit, Oil Level
S.I. 1288 Gage, Oil Level, Modification of
S.B. 451 Gage, Oil Level, Rework or Replacement
S.B. 439A Galling, Inspection of Connecting Rod for
S.I. 1453 Gasket, Oil Filter Converter Plate, Replacement of
S.B. 543A* Gasket, Oil Filter Converter Plate, Replacement (Refer to Supplement No. 1 to S.B. 543A) (A.D. #2000-18-53)
S.I. 1204B Gaskets, Exhaust Flange
S.I. 1016C Gear and Camshaft Replacement
S.I. 1439 Gear Assembly and Camshaft, New Integral, Installation (Refer to Supplement No. 1 to S.I. 1439)
S.B. 475B* Gear Assembly Procedures and Modification, Crankshaft (A.D. #91-14-22)
S.B. 319B* Gear Assy., Inspection, Reduction (A.D. #91-14-22)
S.I. 1076 Gear Assys., Bevel, Pitch Alignment and Backlash
S.I. 1196 Gear Attaching Studs, Reduction, Replacement
* - Airworthiness Directives.
14
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1386A Gear Bushing, Magneto Drive, Replacement of Damaged or Worn
S.I. 1159 Gear Housing Interference, Reduction, Crankcase Modification to Prevent
S.B. 178A Gear Housing Sleeve, Repair of Worn Reduction
S.B. 475B* Gear Modification and Assembly Procedures, Crankshaft (A.D. #91-14-22)
S.I. 1236A Gear Pinion Cages, Reduction, Repair Procedure for Worn (Refer to Supplement No. 1 to S.I. 1236A)
S.I. 1331A Gear Replacement, Crankshaft – TIO & TIGO-541 Series
S.I. 1417 Gear Shaft Bore Repair, Crankcase
S.I. 1197A Gear Shaft Recesses, Idler, Repair
S.B. 486 Gear Support Assemblies, Inspection of Single Belt Driven Starter Ring
S.I. 1351 Gear, Drive, and Drive Shaft, Accessory
S.I. 1387 Gear, Governor Drive, Replacement of
S.I. 1360 Gear, Magneto Drive
S.I. 1356 Gear, Reduction, Oversize Thrust Bearing for
S.L. L233 Gear, Ring, Support Assys., Better Identification of Reverse Rotation
S.I. 1118A Gear, Starter Drive, Replacement
S.I. 1121 Gears, Ring, Identification
S.I. 1141 Gears, Starter Ring, Replacement of Worn
S.I. 1170 Generator Mounting Bolt Replacement
S.I. 1129B Generator, DC, Methods of Checking, and Alternator Belt Tension
S.I. 1105A Generator/Alternator Mounting Brackets, Periodic Inspection
S.I. 1154H Generators, FAA Approved
S.B. 246 GO-435-C2B and –C2B2 Conversion to GO-435-C2B-6 and –C2B2-6
S.I. 1177B Governor Drive Bearing Repair in Crankcase
S.I. 1387 Governor Drive Gear, Replacement of
S.B. 488A* Governor Line Support, Propeller (Refer to Supplement No. 1 to S.B. 488A) (A.D. #90-04-06)
S.I. 1438 Governor Pad Plate, Propeller, P/N LW-12347
S.B. 364A* Grommet, Magneto Replacement (A.D. #73-15-04)
S.I. 1498 Ground Operations, Recommended Engine Procedures for Purging Vapor During
S.I. 1266 Ground Strap, Alternator – All Engines with Prestolite
S.I. 1342 Guide Clearance, Exhaust Valve, Increased
S.B. 503 Guide Replacement, Exhaust Valve on TIO-540-AF1A Engines
S.I. 1116C Guide, Exhaust Valve Clearance Modification
S.I. 1485 Guide, Exhaust Valve Identification Procedure
S.I. 1479A Guide, Exhaust Valve Kit, Oil Cooled, TIO-540-AF1A
S.I. 1200A Guide, Exhaust Valve, Honing During Replacement
S.I. 1136A Guides, Ni-Resist, in Parallel Valve Cylinders (Refer to Supplement No. 1 to S.I. 1136A)
S.I. 1256E Guides, Valve, for Service Use
S.B. 490A Guides, Valve, Installation of Intake and Exhaust
S.I. 1362 Hard Starting
S.I. 1419 Harness, Magneto Wiring, Modification of
S.L. L235A Hartzell Compact Propeller, Aluminum Hub, Installation on Comanche 250 Aircraft
S.I. 1227 Hartzell Propeller Letter No. 17, “Oil Leakage”
S.I. 1148B Heat Control, Use of Carburetor
S.I. 1448 Heater Muffler Covers, Installation of Tailpipes and (Refer to Supplement No. 1 and No. 2 to S.I. 1448)
S.I. 1043A Heli-Coil Insert Replacement, Spark Plug
S.B. 387 Heli-Coil Installation in Induction Housing
S.L. L162B Heli-Coil Service Repair Kit
S.I. 1297 Helical, Spring Retention, Cylinder Modification for Shroud Tubes with
S.I. 1291 High Altitude Operation, Ignition System for
S.B. 404 High Lead Fuel Operation, Exhaust Valve, Inspection
S.I. 1432A High-Crush, Thin-Wall Rear Main Bearings, Installation of in Crankcases without Retention Dowels
S.I. 1323A High-Tensile Strength Bolts, Connecting Rod with
S.I. 1469 High-Tensile Strength Bolts, Connecting Rod with
S.L. L185B Higher Octane Aviation Fuel, Use of 100LL for Engines Rated 80/87 Octane
* - Airworthiness Directives.
15
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1350A HIO-360-D1A, Redesigned Camshaft
S.I. 1484 Hold Down Nuts, Carburetor or Fuel Injector Servo Unit, Installation Torque for Fuel Metering Device
S.I. 1228A Hold-Down Plates, Cylinder, Modification of
S.I. 1257F Horsepower, Manifold Pressure and RPM Values
S.B. 509 Hose Assemblies, 601, Aeroquip Service Bulletin No. AA135
S.I. 1361 Hose Clamps, T-Bolt
S.I. 1464 Hose Line Problems, Aeroquip Service Bulletin No. AA91
S.I. 1274B Hoses, Fuel and Oil, Silicone Coated, Service Replacement
S.I. 1234 Housing Assy., Induction, Tightening Procedure
S.B. 417A Housing, Air Inlet
S.I. 1396 Housing, Induction Air, Redesigned
S.I. 1171 Housings, Accessory, and Covers, Salvage of
S.I. 1286B Housings, Stainless Steel, TE0659 Turbochargers with
S.I. 1011H* Hydraulic Lifter Assy., Plunger Assys., Tappet Bodies: Table of Current and Inspection Procedures
(A.D. #62-03-02)
S.I. 1352A Hydraulic Lifter Body Disassembly
S.I. 1406B Hydraulic Lifters, Crankcases with Provision for Large Diameter
S.I. 1402 Hydraulic Lifters, Redesigned
S.I. 1338 Hydraulic Pump Drive Shaft Modification
S.B. 238 Hydraulic Tappet Plunger Assy., Magnetized Condition
S.B. 424* Hydraulic Tappet Replacement (A.D. #77-20-07)
S.I. 1424 Hydraulic Tappet/Plunger Assy., P/N 78290, Installation Procedure
S.I. 1390 Idle Tube, Carburetor, Replacement
S.I. 1197A Idler Gear Shaft Recesses, Repair
S.I. 1341 Idler Shaft Lubrication, Oil Pump
S.I. 1343A Idler Shaft, Propeller Governor, Set Screw for
S.I. 1310A Idler Shafts, Lockwire for
S.I. 1294 Ignition Cable Routing, Alternate
S.L. L222 Ignition Components, Teledyne Continental Motors, Warranty Repair
S.I. 1365 Ignition Harness Spark Plug Ends, Bendix Electrical Bulletin No. 597, “Cleaning of”
S.I. 1314 Ignition Leads (Slick) Furnished on Bendix Magnetos, Replacement
S.I. 1375 Ignition Noise, Bendix Electrical Components Bulletin No. 603
S.I. 1291 Ignition System for High Altitude Operation
S.B. 357 Immersion, Engine Inspection in Event of
S.I. 1032H Impeller Assys., Supercharger, Parts Replacement and Dynamic Balance
S.B. 423* Impeller Replacement and Oil Pump Inspection (A.D. #78-12-08)
S.I. 1230B Impellers, Oil Pump
S.I. 1434 Impellers, Oil Pump, Improved
S.B. 524* Impellers, Replacement of Aluminum and Sintered Iron (Refer to Supplement No. 1 to S.B. 524)
(A.D. #96-09-10)
S.B. 526 Impulse Coupling Springs or Impulse Coupling Assembly on TCM (Bendix) D-2000 or D-3000 Impulse
Dual Magnetos, Replacement
S.I. 1495 Impulse Coupling Magneto, Replacement of
S.I. 1189 Impulse Coupling Magneto, Slick Malfunction
S.I. 1506 Impulse Coupling Magnetos, Replacement on 4-Cylinder Engines
S.B. 508 Impulse Coupling, Proper Installation, Teledyne Continental Motors Service Bulletin No. 639
S.I. 1396 Induction Air Housing, Redesigned
S.I. 1234 Induction Housing Assy., Tightening Procedures
S.B. 387 Induction Housing, Heli-Coil Installation
S.L. L204 Injection Conversion Kit P/N LW-18866, Fuel
S.I. 1407 Injection Pumps, Simmonds Precision Bulletin No. V-1164, “Periodic Inspection & Overhaul”
S.I. 1301A Injector Lines, Fuel, Identification
S.I. 1275B Injector Nozzles, Fuel, Cleaning
S.I. 1491 Injector, Fuel, Check
* - Airworthiness Directives.
16
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 421* Injector, Fuel Line Between Fuel Pump and Fuel (A.D. #78-23-08)
S.I. 1329A Inlet Adapter Seals, Supercharger
S.I. 1300 Inlet Oil Pressure, Increased Turbocharger
S.B. 342D* Inspection and Installation, Fuel Line and Support Clamp (A.D. #92-12-10)
S.B. 522* Inspection and Replacement of Push Rod P/N 73806 (A.D. #95-03-01)
S.B. 534 Inspection and Replacement of Turbocharger Oil Drain Tank
S.B. 477A* Inspection and Rework of P/N LW-18790 Rocker Arm Assy. (Refer to Supplement No. 1 to S.B. 477A)
(A.D. #87-10-06)
S.B. 505B Inspection of Crankshaft ID for Corrosion
S.B. 521 Inspection of Exhaust System Slip Joints for Proper Engagement and Inspection of Marmon Flange Joint at
Transition Inlet
S.B. 525A* Inspection of High Pressure Fuel Pump, P/N LW-15473 (A.D. #96-23-03)
S.B. 479 Inspection of P/N 77429 Right Intermediate Exhaust Pipe and Exhaust Slip Joint Modification
S.B. 486 Inspection of Single Belt Driven Starter Ring Gear Support Assemblies
S.B. 531C Inspection of Turbochargers and Tailpipes on TIO-540-AE2A Model Engines
S.B. 518C Inspection of Thermostatic Bypass Valves
S.B. 484* Inspection, Alignment and Modification of Crossover Exhaust Assembly (A.D. #89-12-04)
S.B. 549 Inspection, Crankshaft/Engine (Refer to Supplement No. 1 to S.B. 549)
S.B. 480D Inspection, Oil Filter/Screen Content
S.I. 1492C Inspection, Piston Pin Plug Wear
S.I. 1504 Inspection/Replacement of Cylinder Assembly on O-235 Engines
S.B. 548 Inspection/Replacement of Diaphragm-Type Fuel Pump
S.B. 406A Inspection, Titan Fuel Pump
S.B. 540 Inspection, Valve Seat
S.I. 1216 Intake Pipe and Seal Replacement
S.I. 1168B Intake Pipe Bores, Repair, Oil Sump
S.I. 1355 Intake Pipe Extensions and Clamps
S.I. 1173 Intake Pipe Mounting Stud Replacement
S.B. 490A Intake Valve Guides, and Exhaust, Installation of
S.L. L181 Intake Valve Replacement (See Service Instruction Nos. 1280C, 1262A & 1302A)
S.I. 1302A Intake Valve, Rotator, with Small Diameter Head
S.B. 502 Intake Valves, P/N LW-13262, Replacement, Etched with Date Code K-L
S.I. 1280C Intake Valves, Rotator Type
S.I. 1262A Intake Valves, Small Head, and Venturi Seats
S.I. 1439 Integral Camshaft and Gear Assembly, Installation of New (Refer to Supplement No. 1 to S.I. 1439)
S.I. 1502A Inverted Flow Divider, Installation of
S.I. 1397 Inverted Oil System, Overflow Oil from Breather Fitting
S.I. 1263B IO-360 Series Engines, Redesigned Camshaft
S.I. 1325A IO-360 Series Engines, Timing Change
S.B. 302A* IO-360-A1A Engines, Replacement of P/N’s 74308 & 74503 Connecting Rod Assys. (A.D. #66-06-03)
S.B. 380A IO-360-C Timing Change
S.I. 1436 Isolation Drive, Magneto, Adapter Kit for
S.I. 1205 Journal Diameters, Standards for Crankshaft
S.B. 545A Kit Installation Modification
S.B. 411B Kit, Adapter, for Magneto Isolation Drive
S.I. 1393 Kit, Carburetor Modification
S.B. 499C* Kit, Exhaust Pipe, One-Piece, Installation (A.D. #91-21-01)
S.L. L162B Kit, Heli-Coil Service Repair
S.I. 1479A Kit, Oil Cooled Exhaust Valve Guide, TIO-540-AF1A
S.I. 1455 Kit, P/N 05K21433, Fuel Injection Manifold, Installation
S.B. 520 Kits, Cylinder P/N 05K21108, P/N 05K21118 and P/N 05K21104, Shipped with Incorrect Piston
S.B. 371B* Kits, New Rods with High Crush Bearings, Connecting Rod Assys. (A.D. #73-05-01)
S.I. 1314 Leads, Ignition (Slick) Furnished on Bendix Magnetos, Replacement
S.I. 1483 Leak Check, Valve
S.I. 1462 Leak Test Procedure, Propeller Oil Control
* - Airworthiness Directives.
17
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1094D Leaning Procedures, Fuel Mixture
S.B. 496 Lear Romec Service Bulletin No. 101SB019, Fuel Pump, “Relief Valve Diaphragm Replacement”
S.B. 529A* Lear Romec Service Bulletin No. 101SB020, Fuel Pump, “Torquing of Relief Valve Cover Screws”
(A.D. #98-18-12)
S.B. 500A Lear Romec Service Bulletin No. 3402, Fuel Pump, “Rotary Fuel Pump – Non-Conforming Regulating Valve
Diaphragm”
S.B. 506 Lear Romec Service Bulletin No. 3403, Fuel Pump, “Rotary Fuel Pump – Replacement of Regulator Valve
Diaphragm”
S.B. 539A Lear Romec Service Bulletins No. RG9080-73-001, No. RG9570-73-001, and No. RG17980-73-001, Fuel
Pump, “Replacement of Valve Housing and Related Seals”
S.I. 1309 Lear Siegler Fuel Pump Modification
S.I. 1379 Level Gage Kit, Oil
S.I. 1288 Level Gage, Oil, Modification of
S.I. 1265A Lever, Serrated Throttle, and Shaft
S.I. 1352A Lifter Body Disassembly, Hydraulic
S.I. 1381 Lifter, Hydraulic, and Upper Exhaust Valve Spring Seat, Replacement
S.I. 1402 Lifter, Hydraulic, Redesigned
S.B. 435* Lifter, Hydraulic, Replacement of Upper Exhaust Valve Spring and (Refer to Supplement No. 1 and No. 2 to
S.B. 435) (A.D. #80-04-03)
S.I. 1406B Lifters, Hydraulic, Crankcases with Provisions for Large Diameter
S.I. 1011H* Lifters, Hydraulic, Inspection Procedures and Table of Current (A.D. #62-03-02)
S.L. L202B Lightning Holes, All 320, 360 and 540 Series Engines using Crankshaft with, Installed in Aircraft Used for
Aerobatic Maneuvers
S.B. 401 Lightning, Recommendations for Aircraft Struck by
S.I. 1447B Lightweight Starter Installation Instructions
S.I. 1461 Lightweight Starter P/N 31B21064 (24V) and P/N 31A21198 (12V), Improved Pinion
S.B. 314C* Limited Travel Valve Lifter Replacement (A.D. #68-08-08)
S.I. 1427B Limits, Oil Consumption and Engine Break-In
S.B. 488A* Line Support, Propeller Governor (Refer to Supplement No. 1 to S.B. 488A) (A.D. #90-04-06)
S.I. 1211D Linkage, Controller, and Fuel Injecting Setting
S.I. 1431 Linkage, Turbocharger, and Fuel Metering Adjustments (Refer to Supplement No. 1 to S.I. 1431)
S.L. L147B Lubricant, Anderol 471 All-Climate Synthetic Aircraft
S.L. L183 Lubricants, Spin-On Filter
S.B. 318B Lubricating Oil Limitations
S.L. L203 Lubricating Oil Recommendations
S.I. 1014M Lubricating Oil Recommendations
S.I. 1392 Lubricating Oil Recommendations and Cold Weather Operation
S.B. 399 Lubricating Oil, Safe Quantity
S.L. L229B Lubricating Oil, Use of Mobil AV 1 Synthetic, in Textron Lycoming Reciprocating Engines
S.I. 1292A Lubrication and Stainless Steel Thrust Bearing Modifications
S.B. 403 Lubrication Requirements, Aerobatic Engines
S.I. 1420 Lubrication, Fuel Pump Drive Spline
S.I. 1250 Lubrication, Propeller Shaft Bearing
S.I. 1278 Lubrication, Starter Drive
S.I. 1285B Magnetic Particle Inspection
S.I. 1140 Magneto Bearing Recess, Crankcase, Salvage Repair
S.B. 365 Magneto Conversion, Bendix, to Incorporate Flexible Drive
S.I. 1264 Magneto Cover, Addition of Moisture Drains
S.I. 1158 Magneto Drive Adapter Replacement
S.I. 1360 Magneto Drive Gear
S.I. 1299A Magneto Drive Gear and Cushion Modification
S.I. 1386A Magneto Drive Gear Bushing, Replacement of Damaged or Worn
S.B. 311 Magneto Drive Gears, Inspection and Replacement
S.I. 1132A Magneto Drop-Off
S.B. 364A* Magneto Grommet Replacement (A.D. #73-15-04)
* - Airworthiness Directives.
18
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1252C Magneto Installation, Bendix –1200 Series
S.B. 411B Magneto Isolation Drive, Adapter Kit
S.I. 1436 Magneto Isolation Drive, Adapter Kit for
S.I. 1224 Magneto Modification, VO-435-B1A
S.I. 1308D Magneto Pressure Test, Pressurized
S.L. L177A Magneto Replacement Policy, Slick Electro
S.I. 1208 Magneto Shaft Bore Bushings, Installation of
S.B. 380A Magneto Timing Change, IO-360-C Engines
S.B. 183A Magneto Timing Discrepancies
S.I. 1419 Magneto Wiring Harness, Modification of
S.B. 340 Magneto, Bendix Bulletin No. 530A, “Securing Coil Clamp”
S.I. 1260 Magneto, Bendix Bulletin No. 533A, “Acceptable Stress Relief Fissures, Flow Lines and Cracks”
S.I. 1226 Magneto, Bendix Bulletin No. 545, “Tubing for S-1200 Cover Hold Down Screw”
S.B. 341 Magneto, Bendix Bulletin No. 549, “Locating Shoulder for Carbon Brush Spring”
S.B. 343B Magneto, Bendix Bulletin No. 551A, “New Distributor Block Lubricant”
S.B. 376* Magneto, Bendix Bulletin No. 556B, “Magneto Drive Shaft Bushing Change” (A.D. #74-26-09)
S.I. 1282 Magneto, Bendix Bulletin No. 560, “Replacement of Transformer Coils & Rotating Magnets”
S.B. 373 Magneto, Bendix Bulletin No. 566, “S-1200 Distributor Block and Gear Change” (Refer to Supplement No. 1
to S.B. 373)
S.I. 1332 Magneto, Bendix Bulletin No. 573, “Green Block Distributor”
S.I. 1327 Magneto, Bendix Bulletin No. 580, “Breaker Securing Screws”
S.B. 416A* Magneto, Bendix Bulletin No. 584A, “Coil Retaining Devices, D2000/D2200 Mags.) (A.D. #78-18-04)
S.B. 410* Magneto, Bendix Bulletin No. 587, “Inspection of D2000 Capacitors & Lead Crimp Terminals”
(A.D. #78-18-04)
S.I. 1367 Magneto, Bendix Bulletin No. 588, “Stress Lines in Distributor Blocks”
S.B. 414* Magneto, Bendix Bulletin No. 589, “Rear Bearing Lubrication – D2000/D2200 Mags.” (A.D. #77-17-07)
S.B. 415A* Magneto, Bendix Bulletin No. 590A, “Rotating Magnets to Housing Clearance – D2000/D2200 Mags.”
(A.D. #78-18-04)
S.I. 1382 Magneto, Bendix Bulletin No. 592, “Inspection of Breaker Contact Assys. and Capacitor Flag Terminal
Crimps”
S.B. 427A Magneto, Bendix Bulletin No. 600, “10-353110 Bearing in D2000/D2200 Mags.”
S.B. 438A* Magneto, Bendix Bulletin No. 605A, “Housing Distortion and Coil Retention” (A.D. #80-17-14)
S.B. 437* Magneto, Bendix Bulletin No. 606, “D2000/D2200 Mags. Using Green Distributor Blocks” (A.D. #79-12-07)
S.I. 1400 Magneto, Bendix Bulletin No. 608, “Self-Locking Cam Retaining Screws”
S.B. 458 Magneto, Bendix Bulletin No. 613, “Inspection and/or Replacement of Green Distributor Blocks”
S.B. 461 Magneto, Bendix Bulletin No. 617, “Replacement or Inspection of Distributor Blocks”
S.B. 459* Magneto, Bendix Bulletin No. 618, “Replacement or Inspection of Distributor Blocks” (A.D. #81-12-06)
S.B. 460 Magneto, Bendix Bulletin No. 619, “Replacement or Inspection of Distributor Blocks”
S.B. 464A* Magneto, Bendix Bulletin No. 623A, “Inspection of Impulse Coupling Cam Assys.” (A.D. #82-20-01)
S.L. L207 Magneto, Bendix Bulletin No. 625, “Broken Coil Securing Clamps, P/N 10-50765”
S.I. 1433 Magneto, Bendix Bulletin No. 626, “Installation of Impulse Coupling Assys.”
S.B. 469 Magneto, Bendix Bulletin No. 627, “Distributor Block Kit P/N 10-682056 (6 Cyl.) Dual Magneto Series”
S.B. 470 Magneto, Bendix Bulletin No. 628, “Replacement of Impulse Coupling Main Spring P/N 10-382941”
S.B. 474 Magneto, Bendix Bulletin No. 629, “Inspection and Replacement of Brown Magneto Blocks on Turbocharged
(6 Cyl.) Engines”
S.I. 1120 Magneto, Scintilla Bulletin No. 502, “S-700 Magnetos – Internal Timing”
S.I. 1126 Magneto, Scintilla Bulletin No. 503, “Lubrication of Tapered Drive on S Series Magnetos”
S.I. 1139 Magneto, Scintilla Bulletins No. 510, “Distributor Gears – S-600 Series” and No. 511, “Replaceable Electrode –
S-700 Series”
S.B. 537* Magneto, Slick Aircraft Products Bulletin No. SB1-98, “Mandatory Impulse Coupling Inspection on Certain
6 Cylinder Textron Lycoming Engines” (A.D. #99-04-04)
S.B. 432* Magneto, Slick Electro Bulletin No. 1-78, “Magneto/Condenser Replacement” (A.D. #78-25-01)
S.I. 1385 Magneto, Slick Electro Bulletin No. 1-79, “Grounding of Non-Impulse Magnetos (From 4000, 4100 to 4200
Series)”
* - Airworthiness Directives.
19
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO TITLE
S.B. 449* Magneto, Electro Bulletin No. 1-80, “Impulse Coupling Hubs” (A.D. #80-06-05)
S.B. 457A Magneto, Slick Electro Bulletin No. 1-81, “Magneto Malfunction Due to Cracking of Coil Potting Compound”
S.B. 478A Magneto, Slick Electro Bulletin No. 1-86, “Impulse Coupling Inspection”
S.L. L173B Magneto, Slick Electro Bulletin No. 2-80, “Recommended Maintenance and Inspection”
S.B. 468C Magneto, Slick Electro Bulletin No. SB2-88A, “4200 Series Magneto Bearing Inspection”
S.L. L210 Magneto, Slick Electro Bulletin No. SB1-85, “Impulse Coupling Hub Assembly Replacement Program”
S.I. 1357A Magneto, Slick Electro Instructions No. 1-77, “Lag Angle Inspection” and No. 2-77, “Improved Performance”
S.I. 1189 Magneto, Slick Impulse Coupling, Malfunction
S.B. 528 Magneto, Teledyne Continental Ignition Systems Bulletin No. SB658, “Distributor Gear Maintenance”
S.I. 1444 Magneto, Teledyne Continental Motors Bulletin No. 630, “Revised Timing Procedures – IO-720”
S.B. 508 Magneto, Teledyne Continental Motors Bulletin No. 639, “Proper Installation of Impulse Couplings”
S.B. 515 Magneto, Teledyne Continental Motors Bulletin No. 643, “Maintenance Intervals for all TCM and Bendix
Aircraft Magnetos and Related Equipment”
S.B. 517* Magneto, Teledyne Continental Motors Critical Bulletin No. CSB-641, “Possible Open Condition of
SC-20,, -200, -1200 Mag. Capacitor” (Refer to Supplement No. 1 to S.B. 517) (A.D. #94-06-09)
S.B. 541 Magneto, Teledyne Continental Motors Critical Bulletin No. CSB662A, “TCM D-2000 and D-3000 Series
Magneto Capacitors, P/N’s 10-382807, 10-382681, and 10-382681-1”
S.B. 425C* Magneto, Teledyne Continental Motors Mandatory Bulletin No. MSB645, “Inspection of Riveted Impulse
Coupling and Stop Pins” (A.D. #78-09-07)
S.I. 1314 Magnetos (Bendix), Replacement of Slick Ignition Leads Furnished on
S.I. 1495 Magnetos, Impulse Coupling, Replacement of
S.I. 1506 Magnetos, Impulse Coupling, Replacement on 4-Cylinder Engines
S.B. 516 Magnetos, Inspection and Removal of TCM and Bendix S-20 and S-1200 Series Impulse Coupling
S.I. 1346A Magnetos, Installation of Bendix S4LN-1208
S.B. 235A Magnetos, Procedure for Inspection of Type SN-20 & SN-21 (Lightweight)
S.I. 1470 Magnetos, Replacement of Teledyne Continental Motors S-20 and S-200 with SC-20 and SC-200 (Short Cover)
S.I. 1133 Magnetos, S-700 Series, Timing Procedure
S.I. 1374B Magnetos, Slick
S.I. 1443E Magnetos, Slick, Approved on Textron Lycoming Engines
S.B. 526 Magnetos, TCM (Bendix) D-2000 and D-3000 Impulse Dual, Replacement of Impulse Coupling Springs or
Impulse Coupling Assembly
S.B. 313B Maintenance and Inspection of Turbocharger
S.I. 1080A Maintenance Items for Special Attention
S.B. 301B Maintenance Procedures and Service Limitations for Valves
S.I. 1425A Maintenance Procedures to Reduce Possibility of Valve Sticking
S.I. 1040A Maintenance Procedures, Simmonds 530 Fuel Injection System
S.L. L114AK Maintenance Publications, Engine and Accessory
S.I. 1363 Manifold Ball Joint and Retaining Strap, Exhaust
S.I. 1320 Manifold Components, Exhaust, Tightening Procedures
S.I. 1410 Manifold Pipe Improvement, Exhaust
S.I. 1337A Manifold Pressure Relief Valve – TIGO-541
S.I. 1293 Manifold Pressure Relief Valve – TIO-541
S.I. 1257F Manifold Pressure Horsepower and RPM Values
S.I. 1391 Manifold Tube Alignment, Exhaust
S.I. 1190 Manifold Tube Modification, Exhaust
S.I. 1489 Manifold, Fuel, Spring Change
S.I. 1455 Manifold, Fuel Injection, Installation of Kit P/N 05K21433
S.B. 521 Marmon Flange Joint, Inspection at Transition Inlet and Inspection of Exhaust System Slip Joints for Proper
Engagement
S.L. L186 Marvel-Schebler Bulletin No. A1-76, “Carburetor Cleaning”
S.I. 1370 Marvel-Schebler Bulletin No. A1-78, “Carburetor Mixture Control Retainer”
S.B. 434* Marvel-Schebler Bulletin No. A1-79, “Improve Sealing of Economizer Channel, HA-6 Carburetors”
(A.D. #79-15-02)
S.I. 1373 Marvel-Schebler Bulletin No. A2-78, “Sealing Pump and Economizer Rods, Caburetor”
* - Airworthiness Directives.
20
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 436* Marvel-Schebler Bulletin No. A2-79, “Possible Carburetor Contamination” (A.D. #79-08-06)
S.B. 310 Marvel-Schebler Bulletin No. A3-66, “Replacement of Venturi”
S.I. 1398A Marvel-Schebler Carburetor Modification – O-540
S.I. 1421 Marvel-Schebler Carburetor Modification – TO-360
S.B. 352 Marvel-Schebler/Tillotson Bulletin No. 1-71, “Securing Cam Lever”
S.I. 1413 Marvel-Schebler/Tillotson Bulletin No. A1-81, “Model HA Carburetor Float Shaft and Bracket Wear”
S.B. 514 McCauley Bulletin No. 202A, “Replacement of Governor Flyweight Assy. and Pilot Spool End Fitting”
S.L. L230 Microfiche, Publications Available on (Refer to Supplement No. 1 and No. 2 to S.L. L230)
S.L. L132 Military Aircraft Engines, Service Policy
S.I. 1026 Mixture Control Installation Procedure, Simmonds Model 580 Fuel Injector
S.I. 1094D Mixture Leaning Procedures, Fuel
S.B. 484* Modification, Inspection, Alignment and, of Crossover Exhaust Assembly (A.D. #89-12-04)
S.B. 545A Modification, Kit Installation
S.I. 1264 Moisture Drains, Addition of Magneto Cover
S.I. 1157 Motors, Starter, Periodic Maintenance
S.B. 420 Mount Assy., Turbocharger
S.I. 1408A Mount Replacement, Engine
S.I. 1170 Mounting Bolt, Generator Replacement
S.I. 1248B Mounting Bracket Attaching Bolts, Engine
S.I. 1380* Mounting Bracket Attaching Nuts or Bolts, Engine (A.D. #79-10-03)
S.I. 1306A Mounting Bracket Installation, Compressor
S.I. 1270A Mounting Bracket Shims, Alternator
S.I. 1105A Mounting Brackets, Generator/Alternator, Periodic Inspection
S.I. 1298 Mounting Dowel Removal, Engine
S.I. 1415 Mounting Hardware, New Turbocharger
S.I. 1364 Mounting Pad Surface Repair, Oil Pump
S.I. 1232 Mounting Plate Assembly Procedure, Compressor
S.B. 344 Mounting Plate Assembly Procedure, Compressor
S.I. 1173 Mounting Stud, Intake Pipe, Replacement
S.I. 1448 Muffler Covers (Heater), Installation of Tailpipes and (Refer to Supplement No. 1 and No. 2 to S.I. 1448)
S.I. 1304J Nameplate Replacement, Engine
S.B. 212B Necked Studs, Replacing Straight Thru-Studs With
S.I. 1047B Nitride Hardened Steel Cylinders, Inspection and Reconditioning Procedures
S.I. 1465 Non-Counterweighted Engine Models, Crankshaft Assemblies for
S.B. 510 Nozzle Assys., Fuel Injector, Recall, Precision Airmotive Bulletin No. PRS-101 (Refer to Supplement No. 1
to S.B. 510)
S.I. 1271A Nozzle Replacement, Carburetor – O-235
S.I. 1395A Nozzle Replacement, Carburetor – O-320-D2A
S.I. 1305C Nozzle Replacement, Carburetor – O-320-E2A, -E2D, -E2G, -E3D
S.I. 1072 Nozzles, Fuel Injection, for Simmonds No. 530 Fuel Injection System
S.I. 1275B Nozzles, Fuel Injector, Cleaning
S.I. 1231 Nozzles, Fuel Injector, Torque Requirement
S.I. 1106D Nut, Connecting Rod Bolt, Crimping Requirements
S.I. 1210B* Nut, Pinion Cage Attaching, Replacement (A.D. #69-25-08)
S.I. 1380* Nuts or Bolts, Engine Mounting Bracket Attaching (A.D. #79-10-03)
S.B. 213A Nuts, Cylinder Base Allen Head, Replacing Cylinder Base Spline Nuts with
S.I. 1504 O-235 Engines, Cylinder Assembly Inspection/Replacement
S.I. 1388C* O-235 Series Engines, Troubleshooting (Refer to Supplement No. 1 to S.I. 1388C) (A.D. #80-25-02)
S.B. 453D* O-235 Series, Push Rods (A.D. #80-25-02)
S.L. L156 O-290-G Surplus Power Plant Engines (FAA Release No. 462)
S.L. L225 O-320, O-320-A1A, -A1B, -B1A and –B1B Engines, Parts Information
S.I. 1123D O-Ring Seal, Installation of P/N STD-2013 at Doweled Thru Stud Locations
S.L. L226 Oil Additive, P/N LW-16702, Discoloration
S.B. 471A Oil Additive, Use of Textron Lycoming LW-16702
S.B. 446D* Oil Additive, Use of Textron Lycoming LW-16702 (A.D. #80-04-03)
* - Airworthiness Directives.
21
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1409B Oil Additive, Use of Textron Lycoming LW-16702
S.L. L171 Oil Analysis, General Aspects of Spectrometric
S.B. 480D Oil and Filter Change and Screen Cleaning
S.B. 480D Oil Change, and Filter, and Screen Cleaning
S.I. 1427B Oil Consumption Limits and Engine Break-In
S.I. 1462 Oil Control, Propeller Leak Test Procedure
S.I. 1479A Oil Cooled Exhaust Valve Guide Kit, TIO-540-AE2A
S.I. 1316A Oil Cooler Bypass Valve Seat, Repair of
S.I. 1423 Oil Cooler Bypass Valve, Thermostatic, P/N 75944
S.I. 1255 Oil Cooler Bypass Valve, Thermostatic, Replacement
S.I. 1008B Oil Cooler Bypass, Thermostatic, Instructions for Installation
S.B. 534 Oil Drain Tank Inspection and Replacement, Turbocharger
S.I. 1399 Oil Drain Tube Replacement, Turbocharger
S.I. 1487 Oil, Drainback Tube, Clearance
S.B. 377 Oil, Drain, Modification, and Turbocharger Check Valve
S.B. 545A Oil Filler Tube Replacement
S.I. 1169C Oil Filter Assy., Inspection and Replacement
S.B. 370 Oil Filter Attaching Stud Replacement
S.B. 466 Oil Filter Base Adapter Inspection
S.I. 1442 Oil Filter Bypass Valve, Improved
S.I. 1453 Oil Filter Converter Plate Gasket, Replacement of
S.B. 543A* Oil Filter Converter Plate Gasket, Replacement (Refer to Supplement No. 1 to S.B. 543A) (A.D. #2000-18-53)
S.B. 337A Oil Filter Housing and Bolt Modification
S.I. 1457 Oil Filter Kit, Remote Mount, Textron Lycoming
S.B. 397 Oil Filter Seals, Full Flow – TIO & TIGO-541 Series
S.B. 480D Oil Filter/Screen Content Inspection
S.I. 1403 Oil Filters, Approved Spin-On, Champion Bulletin No. 75-4
S.I. 1109 Oil Filters, Procedures for Cleaning Simmonds Fuel Injector
S.I. 1397 Oil From Breather Fitting, Overflow, Inverted Oil System
S.I. 1274B Oil Hoses, Silicone Coated, Service Replacement
S.B. 389 Oil Inlet Check Valve Replacement, Turbocharger
S.I. 1290E Oil Leakage Repair, Crankcase Thru-Stud Locations, Assembled and Unassembled Engines
S.B. 407A* Oil Level Gage Assys. (A.D. #77-07-07)
S.I. 1379 Oil Level Gage Kit
S.I. 1288 Oil Level Gage, Modification of
S.B. 451 Oil Level Gage, Rework or Replacement
S.I. 1435 Oil Line, Propeller Governor, Nut and Elbow (Refer to Supplement No. 1 to S.I. 1435)
S.B. 247 Oil Metering Plug Modification in Accessory Housing
S.I. 1251 Oil Plug, Crankshaft Front, PC-111 & PC-112 Listing
S.I. 1172C Oil Pressure Relief Valve Installation, Adj. and Valve Seat Repair or Replacement
S.I. 1300 Oil Pressure, Increased Turbocharger Inlet
S.I. 1164A Oil Pump Application
S.I. 1341 Oil Pump Idler Shaft Lubrication
S.I. 1230B Oil Pump Impellers
S.I. 1434 Oil Pump Impellers, Improved
S.B. 524* Oil Pump Impellers, Replacement of Aluminum and Sintered Iron (Refer to Supplement No. 1 to S.B. 524)
(A.D. #96-09-10)
S.B. 423* Oil Pump Inspection and Impeller Replacement (A.D. #78-12-08)
S.I. 1364 Oil Pump Mounting Pad Surface Repair
S.I. 1273A Oil Pump, Installation of Relief Valve
S.I. 1392 Oil Recommendations, Lubricating, and Cold Weather Operation
S.I. 1411 Oil Seal Application, Thru-Bolt Ring
S.I. 1111 Oil Seal Surface, Crankshaft, Recondition of Worn
S.I. 1221A Oil Seal, Dry Air Pump Drive, Replacement
* - Airworthiness Directives.
22
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1324A Oil Seals, Crankshaft
S.I. 1313A Oil Squirt Turbocharger Installation
S.B. 345 Oil Suction Tube Assembly Modification
S.I. 1289A Oil Sump and Related Parts Listing – PC-206
S.B. 489A Oil Sump Baffle Assembly P/N LW-13383
S.I. 1279B Oil Sump Baffle Replacement
S.B. 258 Oil Sump Induction Modification to Eliminate Engine Roughness in Piper Aircraft
S.I. 1168B Oil Sump, Repair of Intake Pipe Bores
S.I. 1369 Oil Support Port, Vacuum Pump Pad
S.I. 1321 Oil Transfer and Supply Tubes – Propeller
S.I. 1394 Oil Transfer Dowel, Modification to Retrofit Hollow, on Accessory Housing and Cover Assys.
S.B. 318B Oil Lubricating, Limitations (Break-In)
S.I. 1014M Oil, Lubricating, Recommendations
S.L. L203 Oil, Lubricating, Recommendations
S.B. 399 Oil, Lubricating, Safe Quantity
S.I. 1472 Oil, Preservative, Removal from Engine
S.L. L229B Oil, Synthetic Lubricating, Use of Mobil AV 1, in Textron Lycoming Reciprocating Aircraft Engines
S.B. 369I Overboost, Engine Inspection After
S.I. 1397 Overflow Oil from Breather Fitting of Inverted Oil System
S.L. L161C Overhaul Manual Revision Policy
S.L. L209A Overhaul Manuals and Parts Catalogs, Utilization of Textron Lycoming Piston Engines
S.B. 240R Overhaul, Normal, Parts Replacement, and During Repair or Normal Maintenance
S.I. 1009AQ Overhaul, Recommended Time Between (TBO) – (Reactivated – Supersedes S.L. L201C)
S.B. 276 Overhaul, Replacement of Front Main Bearing
S.I. 1123D Oversized Dowel, Installation of P/N 75302-P10 at Thru-Stud Location
S.B. 369I Overspeed, Engine Inspection After
S.I. 1364 Pad Surface Repair, Oil Pump Mounting
S.B. 271A Painting of Cylinder Flange Area
S.B. 544 Part Identification, Bearing Replacement
S.L. L223 Part Number Code, New
S.I. 1285B Particle Inspection, Magnetic
S.I. 1125B Parting Surface Sealants, Alternate Crankcase
S.L. L227A Parts Catalogs and Applicable SSP’s and/or Revisions
S.L. L209A Parts Catalogs and Overhaul Manuals, Utilization of Textron Lycoming Piston Engine
S.L. L225 Parts Information, O-320, O-320-A1A, -A1B, -B1A, -B1B Engines
S.I. 1289A Parts Listing – PC-206, Oil Sump and Related
S.I. 1032H Parts Replacement and Dynamic Balance of Supercharger Impeller Assemblies
S.B. 240R Parts Replacement, Mandatory, at Normal Overhaul and During Repair or Normal Maintenance
S.I. 1218A Parts Substitution Chart, Camshaft with Integral Drive Gear
S.I. 1059C Parts, Pre-Lubrication Prior to Assembly
S.I. 1122A Parts, Turbocharger, Repair Procedures for
S.L. L239 Parts, Warranty Return, Preservation of
S.I. 1340 Pin Identification, Piston
S.I. 1267C Pin Plug Usage, Piston
S.I. 1376 Pin Replacement, Starter Drive
S.L. L182 Pin, Piston, Finish
S.I. 1492C Pin, Piston, Plug Wear Inspection
S.B. 501B* Pin, Piston, P/N LW-14077, Recall of (A.D. #92-12-05)
S.B. 527C* Pin, Piston, P/N LW-14077, Recall of (A.D. #97-01-03)
S.I. 1156A Pinion Cage Assy. and Propeller Shaft Procedure
S.I. 1210B* Pinion Cage Attaching Nut Replacement (A.D. #69-25-08)
S.I. 1236A Pinion Cages, Reduction Gear, Repair Procedure for Worn (Refer to Supplement No. 1 to S.I. 1236A)
S.I. 1461 Pinion, Improved for Lightweight Starter P/N 31B21064 (24V) and P/N 31A21198 (12V)
S.I. 1355 Pipe Extensions and Clamps, Intake
S.I. 1410 Pipe Improvement, Exhaust Manifold
* - Airworthiness Directives.
23
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 499C* Pipe Kit, Exhaust (05K21503), One-Piece, Installation of (A.D. #91-21-01)
S.I. 1216 Pipe, Intake, and Seal Replacement
S.I. 1243 Piston Identification and Inspection
S.L. L182 Piston Pin Finish
S.I. 1340 Piston Pin Identification
S.I. 1267C Piston Pin Plug Usage
S.I. 1492C Piston Pin Plug Wear Inspection
S.B. 367F* Piston Pin, P/N 69650, Required Inspection (Refer to Supplement No. 1 to S.B. 367F) (A.D. #73-23-01)
S.B. 501B* Piston Pin, P/N LW-14077, Recall of (A.D. #92-12-05)
S.B. 527C* Piston Pin, P/N LW-14077, Recall of (A.D. #97-01-03)
S.L. L215 Piston Replacement Recommendation
S.I. 1471 Piston Usage
S.B. 520 Piston, Incorrect Shipped with Cylinder Kits P/N 05K21108, P/N 05K21118 and P/N 05K21104
S.I. 1037L Pistons, Approved for Use in Textron Lycoming Aircraft Engines
S.I. 1076 Pitch Alignment, Bevel Gear Assy., Backlash and
S.I. 1232 Plate, Compressor Mounting, Assembly Procedure
S.I. 1296 Plate, Drive, and Crankshaft Attaching Parts
S.I. 1438 Plate, Propeller Governor Pad, P/N LW-12347
S.I. 1228A Plates, Cylinder Hold-Down, Modification of
S.I. 1180B Plug, Crankshaft Front
S.I. 1251 Plug, Crankshaft Front Oil, PC-111 & PC-112 Listing
S.I. 1267C Plug, Piston Pin, Usage
S.I. 1492C Plug, Piston Pin, Wear Inspection
S.I. 1424 Plunger Assy./Hydraulic Tappet P/N 78290, Installation Procedure
S.B. 238 Plunger Assys., Magnetized Condition of Hydraulic Tappet
S.I. 1011H* Plunger Assys., Table of Current (A.D. #62-03-02)
S.L. L132 Policy, Service, Regarding Lycoming Military Aircraft Engines
S.I. 1428 Power Setting, Richer, Carburetor Modification for – O/LO-360-A
S.I. 1241C Pre-Oiling Engines Prior to Initial Start
S.B. 495A Precision Airmotive Corp. Bulletin No. MSA-1, Rev. 1, Carburetor, “Replacement of Composit Floats with
Metal Floats”
S.B. 498B Precision Airmotive Corp. Bulletin No. MSA-2, Rev. 2, Carburetor, “One Piece Primary and Main Venturi”
S.B. 510 Precision Airmotive Corp. Bulletin No. PRS-101, “Recall of Fuel Injector Nozzle Assys.” (Refer to Supplement
No. 1 to S.B. 510)
S.I. 1445 Precision Airmotive Corp. Bulletin No. PRS-91, Fuel Injector, “Timing of the Power Enrichment Valve
Opening”
S.B. 485* Precision Airmotive Corp. Bulletin No. PRS-92, “Fuel Injector Contamination” (A.D. #89-13-02)
S.B. 532 Precision Airmotive Corp. Bulletin No. PRS-103, Fuel Injector, “Fuel Diaphragm Assembly, P/N 2541803”
(Refer to Supplement No. 2 to S.B. 532)
S.I. 1494 Precision Airmotive Service Information Letter No. SIL RS-45, Fuel Injector, ‘Rework Instructions for
RSA-5AD1 Fuel Injection Servo Installed on Slingsby T-3A Aircraft”
S.L. L221B Precision Fuel Control Components, Warranty Repair of (Refer to Supplement No. 1 to S.L. L221B)
S.L. L239 Preservation of Warranty Return Parts
S.I. 1481 Preservation, Engine, Factory
S.L. L180A Preservation, Engine, for Active and Stored Aircraft
S.I. 1472 Preservative Oil, Removal from Engine
S.I. 1474 Pressure Controller, Differential, Improved for TIO-540-AF1A Engine Model
S.I. 1308D Pressurized Magneto Pressure Test
S.L. L189 Prestolite Bulletin No. ASM-11, “Bench Testing Solid State Regulators”
S.I. 1389 Prestolite Bulletin No. ASM-12, “Addition of Loctite Grade A to Starting Motors”
S.I. 1253 Prestolite Bulletin No. ASM-5, “Field Terminal Stud Insulation Replacement”
S.I. 1237A Prestolite Bulletins No. ASM-3 and ASM-4, “Aircraft Charging System Service Precautions”
S.I. 1301A Primer and Fuel Injector Lines, Identification
S.B. 533A* Propeller/Rotor Blade or Tip Loss, Propeller/Rotor Strike, Recommendations Regarding (A.D. #91-14-22)
* - Airworthiness Directives.
24
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1312 Propeller Drive Thrust Bearing Replacement (Crankcase P/N LW-13082)
S.I. 1098G Propeller Flange Bushing Location
S.I. 1452 Propeller Flange Bushings, Reindexing (O-360-C1G)
S.I. 1344 Propeller Flange Dowel Hole Repair
S.I. 1343A Propeller Governor Idler Shaft, Set Screw for
S.B. 488A* Propeller Governor Line Support (Refer to Supplement No. 1 to S.B. 488A) (A.D. #90-04-06)
S.I. 1435 Propeller Governor Oil Line Nut and Elbow
S.I. 1438 Propeller Governor Pad Plate P/N LW-12347
S.I. 1462 Propeller Oil Control Leak Test Procedure
S.I. 1321 Propeller Oil Transfer and Supply Lines
S.I. 1156A Propeller Shaft and Pinion Cage Assembly Procedure
S.I. 1250 Propeller Shaft Bearing Lubrication
S.I. 1108C Propeller Shaft Bearing Surfaces, Repair (Refer to Supplement No. 1 to S.I. 1108C)
S.L. L235A Propeller, Hartzell, Compact Aluminum Hub, Installation on Comanche 250 Aircraft
S.I. 1227 Propeller, Hartzell Letter No. 17, “Oil Leakage”
S.B. 514 Propeller, McCauley Bulletin No. 202A, “Replacement of Governor Flyweight Assy. and Pilot Spool End
Fitting”
S.L. L230 Publications Available on Microfiche (Refer to Supplement No. 1 and No. 2 to S.L. L230)
S.L. L114AK Publications, Engine and Accessory Maintenance
S.L. L161C Publications, Overhaul Manual Revision Policy
S.L. L195 Puller, Seal, ST-172, Revision of
S.I. 1283A Pulley and Belt, Alternator Cob, Installation
S.I. 1249 Pulley, Alternator, and Shaft Assy.
S.I. 1221A Pump Drive (Dry Air) Oil Seal Replacement
S.I. 1338 Pump Drive Shaft Modification, Hydraulic
S.I. 1341 Pump Idler Shaft Lubrication, Oil
S.I. 1364 Pump Mounting Pad Surface Repair, Oil
S.B. 494* Pump Vent Fittings, Fuel, Restricted, Installation of (A.D. #91-08-07)
S.B. 487* Pump, Vent, Fuel, Restriction (A.D. #89-15-10)
S.I. 1212 Pump, Accelerator, Marvel-Schebler Carburetor with – O-235-C Series
S.B. 374 Pump, Fuel Inlet, Inspection
S.B. 421* Pump, Fuel Line Between Fuel Injector and Fuel (A.D. #78-23-08)
S.L. L218 Pump, Fuel, Adapters
S.B. 525A* Pump, Fuel, Inspection of High Pressure, P/N LW-15473 (A.D. #96-23-03)
S.B. 406A Pump, Fuel, Inspection, Titan
S.B. 548 Pump, Fuel, Inspection/Replacement of Diaphragm Type
S.I. 1309 Pump, Lear Siegler Fuel, Modification
S.I. 1164A Pump, Oil, Application
S.I. 1230B Pump, Oil, Impellers
S.I. 1434 Pump, Oil, Impellers, Improved
S.I. 1152A Punch Marks on Crankshaft Counterweight Lobes
S.I. 1060H Push Rod Identification
S.B. 522* Push Rod P/N 73806, Inspection and Replacement (A.D. #95-03-01)
S.I. 1480 Push Rods, Installation of Steel
S.B. 453D* Push Rods, O-235 Series (A.D. #80-25-02)
S.B. 408 Rajay Industries Service Letter No. 21A, “Inspection of Turbine (Exhaust) Housings”
S.B. 501B* Recall of Piston Pin P/N LW-14077 (A.D. #92-12-05)
S.B. 527C* Recall of Piston Pin P/N LW-14077 (A.D. #97-01-03)
S.I. 1498 Recommended Engine Procedures for Purging Vapor During Ground Operations
S.I. 1009AQ Recommended Time Between Overhaul (TBO) – (Reactivated – Supersedes S.L. L201C)
S.L. L214A Reconditioned Camshaft Exchange Program (Notice of Discontinuance of Program)
S.L. L150T Reconditioned Simmonds Fuel Injectors
S.I. 1047B Reconditioning Procedures for Nitride Hardened Steel Cylinders
S.B. 319B* Reduction Gear Assembly Inspection (A.D. #69-25-08)
* - Airworthiness Directives.
25
ALPHABETICAL LISTING OF TEXRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1159 Reduction Gear Housing Interference, Crankcase Modification to Prevent
S.I. 1236A Reduction Gear Pinion Cages, Repair Procedure for Worn (Refer to Supplement No. 1 to S.I. 1236A)
S.I. 1446* Regulator Diaphragm, Possible Ruptured, in AN Fuel Pump (A.D. #91-08-07)
S.I. 1154H Regulators, FAA Approved
S.L. L189 Reguators, Prestolite Bulletin No. ASM-11, “Bench Test Solid State Regulators”
S.I. 1154H Relays, RAA Approved
S.I. 1172C Relief Valve Installation, Adjustable Oil Pressure, and Valve Seat Repair or Replacement
S.I. 1273A Relief Valve, Installation in Oil Pump
S.I. 1337A Relief Valve, Manifold Pressure – TIGO-541
S.I. 1293 Relief Valve, Manifold Pressure – TIO-541
S.I. 1457 Remote Mount Oil Filter Kit, Textron Lycoming
S.B. 222D Renitriding Recommendations, Crankshaft
S.L. L221B Repair, Warranty, of Precision Fuel Metering Components
S.L. L222 Repair, Warranty, of Teledyne Continental Motors Ignition Components
S.B. 311 Retainers (Cushion), Inspection and Replacement
S.I. 1277A Retaining Components, Shroud Tube
S.I. 1284A Retaining Spring Replacement, Shroud Tube
S.I. 1363 Retaining Strap and Ball Joint, Exhaust Manifold
S.L. L227A Revisions and/or SSP’s Applicable to Parts Catalogs
S.B. 477A* Rework and Inspection of P/N LW-18790 Rocker Arm Assy. (Refer to Supplement No. 1 to S.B. 477A)
(A.D. #87-10-06)
S.I. 1428 Richer Power Setting, Carburetor Modifications for – O/LO-360-A
S.L. L233 Ring Gear, Support Assys., Better Identification of Reverse Rotation
S.I. 1121 Ring Gears, Identification
S.I. 1141 Ring Gears, Starter, Replacement of Worn
S.I. 1411 Ring, Thru-Bolt, Oil Seal Application
S.I. 1037L Rings, Approved for Use in Textron Lycoming Aircraft Engines
S.B. 477A* Rocker Arm Assy., Inspection and Rework of P/N LW-18790 (Refer to Supplement No. 1 to S.B. 477A)
(A.D. #87-10-06)
S.I. 1454 Rocker Arm Installation, Parallel Valve
S.B. 412B* Rocker Arm Retaining Stud, Intake and Exhaust Valve (A.D. #77-20-07)
S.I. 1268C Rocker Assy., Exhaust Valve
S.I. 1468A Rocker Assy., Exhaust Valve
S.I. 1366A Rocker Shaft Bearing Hole, Repair Procedure for Worn
S.I. 1176 Rocker Shaft Repair, Valve
S.B. 225B Rocker Thrust Washers, Valve, Replacement of
S.I. 1182A Rockers, High Lift Valve, for Improved Performance
S.I. 1307B Rod Bolt Assembly, Connecting, and Torque Application
S.I. 1450 Rod Bolt, Connecting, and Torque Application, Alternate
S.I. 1458B Rod Bolts, Connecting
S.I. 1318 Rod Bolts, Connecting, Strengthened
S.I. 1311A Rod Bolts, Oversize Connecting
S.I. 1359 Rod Cap Modification, Connecting
S.B. 418 Rod End Replacement, Waste Gate Control Cable
S.I. 1060H Rod Identification, Push
S.I. 1466 Rod, Connecting, Assemblies
S.I. 1467 Rod, Connecting, Assemblies
S.B. 547 Rod, Connecting, Bearing Replacement on TIO-540-AE2A Model Engines
S.I. 1323A Rod, Connecting, with High-Tensile Strength Bolts
S.I. 1469 Rod, Connecting, with High-Tensile Strength Bolts
S.B. 522* Rods, Push, P/N 73806, Inspection and Replacement (A.D. #95-03-01)
S.B. 439A Rods, Connecting, Inspection for Fretting and/or Galling, Repair of Fretting
S.I. 1138B Rods, Connecting, Replacement of IO-720 Engines
S.B. 351B* Rods, Heavy Connecting for High Speed Geared Drive Engines (A.D. #74-13-05)
* - Airworthiness Directives.
26
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1480 Rods, Push, Installation of Steel
S.B. 453D* Rods, Push, O-235 Series (A.D. #80-25-02)
S.I. 1075A Rods, Push, Procedure for Removing from Top Exhaust Cylinders
S.I. 1500 Roller Change, Counterweight for Robinson Helicopter
S.I. 1012F Rollers, Location and Proper Assembly Procedure
S.I. 1302A Rotator Intake Valve with Small Diameter Head
S.I. 1280C Rotator Type Intake Valves
S.I. 1449 Rotomaster Turbocharger (46A21184), Installation of
S.B. 533A* Rotor/Propeller Blade or Tip Loss, Rotor/Propeller Strike, Recommendations Regarding (A.D. #91-14-12)
S.I. 1257F RPM Values, Horsepower and Manifold Pressure
S.I. 1140 Salvage Repair of Magneto Bearing Recess in Crankcase
S.I. 1120 Scintilla Bulletin No. 502, S-700 Series Magnetos, “Internal Timing”
S.I. 1126 Scintilla Bulletin No. 503, “Lubrication of Tapered Drive Shaft on S Series Mags.”
S.I. 1139 Scintilla Bulletin No. 510 and 511, “Distributor Gears S-600 Series; Replaceable Electrodes S-700 Series”
S.I. 1186 Screen, Filter, Removal from Fuel Injector Nozzle
S.B. 366 Screw, Carburetor Throttle Body, Inspection
S.B. 330B* Screw, Retighten and Lockwire Carburetor Throttle Arm (A.D. #72-06-05)
S.L. L196 Screwdriver Blade, ST-418-3, Revision to
S.I. 1216 Seal and Intake Pipe Replacement
S.L. L195 Seal Puller, ST-172, Revision to
S.I. 1111 Seal Surface, Crankshaft Oil, Recondition of Worn
S.I. 1347 Seal Surface, Shroud Tube, Repair of
S.I. 1368 Seal Washer and Retainer, Tachometer Adapter
S.B. 354 Seal, Leakage at Propeller Shaft
S.B. 375A Seal, Moisture, Cross Shaft Support Tube
S.I. 1459 Sealant, Application to Bolt Threads
S.I. 1125B Sealants, Alternate Crankcase Parting Surface
S.I. 1324A Seals, Crankshaft Oil
S.B. 397 Seals, Full Flow Oil Filter
S.I. 1329A Seals, Supercharger Inlet Adapter
S.I. 1092A Seat Replacement, Valve, Tools and Procedures
S.I. 1316A Seat, Oil Cooler Bypass Valve, Repair of
S.B. 540 Seat, Valve, Inspection
S.I. 1262A Seats, Venturi, and Small Head Intake Valves
S.B. 301B Service Limitations and Maintenance Procedures for Valves
S.L. L132 Service Policy Regarding Lycoming Military Aircraft Engines
S.I. 1345 Service Replacement Crankcases for Narrow Cylinder Flange Four Cylinder Engines
S.I. 1256E Service Use, Alternate Valve Guides for
S.I. 1079B Servo Fuel Line Filters, Periodic Maintenance
S.I. 1484 Servo Unit Hold Down Nuts, Carburetor or Fuel Injector, Installation Torque for Fuel Metering Device
S.I. 1343A Set Screw for Propeller Governor Idler Shaft
S.I. 1249 Shaft Assy. and Alternator Pulley
S.I. 1108C Shaft Bearing Surfaces, Propeller, Repair (Refer to Supplement No. 1 to S.I. 1108C)
S.I. 1250 Shaft Bearing, Propeller, Lubrication
S.I. 1208 Shaft Bore Bushings, Magneto, Installation of
S.I. 1366A Shaft Bushing Hole, Rocker, Repair Procedure for Worn
S.I. 1341 Shaft Lubrication, Oil Pump Idler
S.I. 1338 Shaft Modification, Hydraulic Pump Drive
S.I. 1197A Shaft Recesses, Idler Gear, Repair
S.I. 1161 Shaft, Carburetor Throttle, Modification to Prevent Leakage
S.B. 375A Shaft, Cross, Support Tube Moisture Seal
S.I. 1503 Shaft, Dowel and Accessory Drive Gear Replacement
S.I. 1351 Shaft, Drive, and Drive Gear, Accessory
S.I. 1084A Shaft, Intermediate Supercharger Drive, and Components
* - Airworthiness Directives.
27
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 354 Shaft, Leakage at Propeller Seal
S.I. 1343A Shaft, Propeller Governor Idler, Set Screw for
S.I. 1156A Shaft, Propeller, and Pinion Cage Assembly Procedure
S.I. 1176 Shaft, Repair, Valve Rocker
S.I. 1265A Shaft, Serrated Throttle, and Lever
S.I. 1310A Shafts, Idler, Lockwire for
S.I. 1270A Shims, Alternator Mounting Bracket
S.I. 1277A Shroud Tube Retaining Components
S.I. 1248B Shroud Tube Retaining Spring Replacement
S.B. 519 Shroud Tube Retaining Springs, Removal of LW-14995 Before Further Flight
S.I. 1347 Shroud Tube Seal Surface, Repair of
S.I. 1297 Shroud Tubes with Helical Spring Retention, Cylinder Modification
S.I. 1215 Shroud Tubes, Correct Installation for Up-Exhaust Engines
S.I. 1072 Simmonds Fuel Injection System No. 530, Fuel Injection Nozzles
S.I. 1040A Simmonds Fuel Injection System No. 530, Maintenance Procedures
S.I. 1062 Simmonds Fuel Injection System No. 570, Maintenance Procedures – Fuel Vent Return “T” Fitting
S.I. 1069A Simmonds Fuel Injection System No. 580, Procedure for Inspection & Adjustment to Regulate Fuel Flow
S.I. 1026 Simmonds Model No. 580 Fuel Injector Mixture Control Installation Procedure
S.I. 1407 Simmonds Precision Bulletin No. V-1164, “Periodic Inspection & Overhaul of Injection Pumps”
S.B. 524* Sintered Iron and Aluminum Oil Pump Impellers, Replacement (Refer to Supplement No. 1 to S.B. 524)
(A.D. #96-09-10)
S.B. 331 Sleeve, Inspection 7 Removal in Fuel Injector Lines (Rubber)
S.B. 178A Sleeve, Reduction Gear Housing, Repair of Worn
S.B. 537* Slick Aircraft Products Bulletin No. SB1-98, “Mandatory Impulse Coupling Inspection of Certain 6 Cylinder
Textron Lycoming Engines” (A.D. #99-04-04)
S.B. 432* Slick Electro Bulletin No. 1-78, “Magneto/Condenser Replacement” (A.D. #78-25-01)
S.I. 1385 Slick Electro Bulletin No. 1-79, “Grounding for Non-Impulse Magnetos” (From 4000, 4100 to 4200 Series)
S.B. 449* Slick Electro Bulletin No. 1-80, “Impulse Coupling Hubs” (A.D. #80-06-05)
S.B. 457A Slick Electro Bulletin No. 1-81, “Magneto Malfunction Due to Cracking of Coil Potting Compound”
S.B. 478A Slick Electro Bulletin No. 1-86, “Impulse Coupling Inspection”
S.L. L173B Slick Electro Bulletin No. 2-80, “Recommended Maintenance & Inspection”
S.L. L210 Slick Electro Bulletin No. SB1-85, “Impulse Coupling Hub Assembly Replacement Program”
S.B. 468C Slick Electro Bulletin No. SB2-88A, “4200 Series Magneto Bearing Installation”
S.I. 1357A Slick Electro Instructions No. 1-77, “Lag Angle Inspection” and No. 2-77, “Improved Performance”
S.L. L177A Slick Electro Magneto Replacement Policy
S.I. 1189 Slick Impulse Coupling Magneto, Installation
S.I. 1374B Slick Magnetos
S.I. 1443E Slick Magnetos, Approved on Textron Lycoming Engines
S.B. 393C Slip Joint Modification, Exhaust
S.B. 479 Slip Joint Modification, Exhaust, and Inspection of P/N 77429 Right Intermediate Exhaust Pipe
S.B. 521 Slip Joints, Exhaust System, Inspection for Proper Engagement and Inspection of Marmon Flange Joint at
Transition Inlet
S.I. 1167 Sludge Tube Assembly and Test
S.I. 1113A Sludge Tubes, Crankshaft Assy., Revised to Eliminate
S.B. 405 Spacer, Turbo Strut
S.B. 359 Spark Plug Change
S.L. L192B Spark Plug Fouling
S.I. 1043A Spark Plug, Heli-Coil Insert Replacement
S.I. 1042W Spark Plugs, Approved
S.L. L227A Special Service Publications (SSP’s) and/or Revisions Applicable to Parts Catalogs
S.I. 1070L Specified Fuels
S.L. L171 Spectrometric Oil Analysis, General Aspects of
S.I. 1145 Spline Drive, Modification to Incorporate Large into Accessory Drive Shaft
S.B. 507 Spotfaces, Missing on P/N 74218 Cylinder Head Assembly
* - Airworthiness Directives.
28
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1192 Spring Compressor No. ST-266 Valve
S.I. 1489 Spring Change, Fuel Manifold
S.I. 1284A Spring Replacement, Shroud Tube Retaining
S.I. 1381 Spring Seat, Upper Exhaust Valve, and Hydraulic Lifter, Replacement
S.B. 447B* Spring Seat, Upper Exhaust Valve, Inspection (A.D. #80-14-07)
S.B. 435* Spring Seat, Upper Exhaust, Replacement of Hydraulic Lifter and (Refer to Supplement No. 1 and No. 2 to
S.B. 435) (A.D. #80-04-03)
S.I. 1240C Spring, Valve, Replacement
S.L. L220B Standard Cylinder Flange Engines, Non-Availability of New
S.I. 1383 Starter Conversion
S.I. 1239 Starter Drive Assembly Replacement
S.I. 1118A Starter Drive Gear Replacement
S.I. 1242A Starter Drive Gear, Thrust Washers for
S.I. 1278 Starter Drive Lubrication
S.I. 1287 Starter Drive Modification: Cold Weather Starting
S.I. 1376 Starter Drive Pin Replacement
S.I. 1224 Starter Modification, VO-435-B1A
S.I. 1157 Starter Motors, Periodic Maintenance
S.B. 486 Starter Ring Gear Support Assemblies, Inspection of Single Belt Driven
S.I. 1141 Starter Ring Gears, Replacement of Worn
S.I. 1451A Starter, Alternator and Compressor Installation
S.I. 1461 Starter, Lightweight, Improved Pinion for P/N 31B21064 (24V) and P/N 31A21198 (12V)
S.I. 1447B Starter, Lightweight, Installation Instructions
S.I. 1154H Starters, FAA, Approved
S.I. 1121 Starters, Identification
S.I. 1025 Starters, Recommended Torque Setting
S.I. 1389 Starting Motors, Prestolite Bulletin No. ASM-12, “Addition of Loctite Grade A”
S.I. 1362 Starting, Hard
S.I. 1480 Steel Push Rods, Installation
S.I. 1425A Sticking Valve, Maintenance Procedure to Reduce Possibility of
S.I. 1266 Strap, Alternator Ground – All Engines with Prestolite
S.I. 1315A Strut Bracket and Clamp Installation, Turbocharger
S.I. 1173 Stud, Intake Pipe Mounting, Replacement
S.B. 370 Stud, Oil Filter Attaching, Replacement
S.B. 412B* Stud, Retaining, Intake and Exhaust Valve Rocker Arm (A.D. #77-20-07)
S.I. 1196 Studs, Reduction Gear Attaching, Replacement
S.I. 1279B Sump Baffle Replacement, Oil
S.I. 1289A Sump, Oil and Related Parts Listing – PC-206
S.B. 489A Sump, Oil, Baffle Assembly P/N LW-13383
S.I. 1168B Sump, Oil, Repair of Intake Pipe Bores
S.I. 1295 Supercharger Adapter Bearing, Oversize
S.I. 1084A Supercharger Drive Shaft, Intermediate, and Components
S.I. 1032H Supercharger Impeller Assys., Parts Replacement and Dynamic Balance
S.I. 1329A Supercharger Inlet Adapter Seals
S.B. 367F-1* Supplement No. 1 to Service Bulletin No. 367F (A.D. #73-23-01)
S.B. 373-1 Supplement No. 1 to Service Bulletin No. 373
S.B. 388B-1 Supplement No. 1 to Service Bulletin No. 388B
S.B. 391A-1 Supplement No. 1 to Service Bulletin No. 391A
S.B. 428-1* Supplement No. 1 to Service Bulletin No. 428 (A.D. #78-23-10)
S.B. 430-1* Supplement No. 1 to Service Bulletin No. 430 (A.D. #78-23-10)
S.B. 435-1* Supplement No. 1 to Service Bulletin No. 435 (A.D. #80-04-03)
S.B. 442-1* Supplement No. 1 to Service Bulletin No. 442 (A.D. #’s 79-21-08 & 79-26-03)
S.B. 467-1* Supplement No. 1 to Service Bulletin No. 467 (A.D. #83-22-04)
S.B. 477A-1 Supplement No. 1 to Service Bulletin No. 477A
* - Airworthiness Directives.
29
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 488A-1* Supplement No. 1 to Service Bulletin No. 488A (A.,D. #90-04-06)
S.B. 510-1 Supplement No. 1 to Service Bulletin No. 510
S.B. 517-1* Supplement No. 1 to Service Bulletin No. 517 (A.D. #94-06-04)
S.B. 524-1* Supplement No. 1 to Service Bulletin No. 524 (A.D. #96-09-10)
S.B. 543A-1* Supplement No. 1 to Service Bulletin No. 543A (A.D. #2000-18-53)
S.B. 549-1 Supplement No. 1 to Service Bulletin No. 549
S.I. 1012F-1 Supplement No. 1 to Service Instruction No. 1012F
S.I. 1029D-1 Supplement No. 1 to Service Instruction No. 1029D
S.I. 1068A-1 Supplement No. 1 to Service Instruction No. 1068A
S.I. 1108C-1 Supplement No. 1 to Service Instruction No. 1108C
S.I. 1112E-1 Supplement No. 1 to Service Instruction No. 1112E
S.I. 1136A-1 Supplement No. 1 to Service Instruction No. 1136A
S.I. 1236A-1 Supplement No. 1 to Service Instruction No. 1236A
S.I. 1316A-1 Supplement No. 1 to Service Instruction No. 1316A
S.I. 1377-1 Supplement No. 1 to Service Instruction No. 1377
S.I. 1388C-1* Supplement No. 1 to Service Instruction No. 1388C (A.D. #80-25-02)
S.I. 1431-1 Supplement No. 1 to Service Instruction No. 1431
S.I. 1435-1 Supplement No. 1 to Service Instruction No. 1435
S.I. 1439-1 Supplement No. 1 to Service Instruction No. 1439
S.I. 1448-1 Supplement No. 1 to Service Instruction No. 1448
S.L. L221B-1 Supplement No. 1 to Service Letter No. L221B
S.L. L230-1 Supplement No. 1 to Service Letter No. L230
S.B. 392B-2 Supplement No. 2 to Service Bulletin No. 392B
S.B. 435-2* Supplement No. 2 to Service Bulletin No. 435 (A.D. #80-04-04)
S.B. 467-2* Supplement No. 2 to Service Bulletin No. 467 (A.D. #83-22-04)
S.B. 532-2 Supplement No. 2 to Service Bulletin No. 532
S.I. 1029D-2 Supplement No. 2 to Service Instruction No. 1029D
S.I. 1143B-2 Supplement No. 2 to Service Instruction No. 1143B
S.I. 1448-2 Supplement No. 2 to Service Instruction no. 1448
S.L. L230-2 Supplement No. 2 to Service Letter No. L230S.I. 1369 Supply Port, Vacuum Pump Pad Oil
S.L. L233 Support Assy., Better Identification of Reverse Rotation Ring Gear
S.I. 1384A Support Assy., Turbocharger, with Large Spools & Support Installation Instructions
S.B. 342D* Support Clamp and Fuel Line Inspection and Installation (A.D. #92-12-10)
S.I. 1149 Support Web, Crankcase Bearing, Inspection & Modification
S.L. L229B Synthetic Lubricating Oil, Use of Mobil AV 1, in Textron Lycoming Reciprocating Aircraft Engines
S.I. 1361 T-Bolt Hose Clamps
S.I. 1368 Tachometer Adapter Seal Washer and Retainer
S.B. 492A Tailpipe Installation, Redesigned V-Band Couplings for
S.B. 531C Tailpipes, Inspection on TIO-540-AE2A Model Engines
S.I. 1448 Tailpipes, Installation of Heater Muffler Covers and (Refer to Supplement No. 1 and No. 2 to S.I. 1448)
S.I. 1011H* Tappet Bodies, Hydraulic, Table of Current (A.D. #62-03-02)
S.L. L206A Tappet Bodies/Cam Followers, Field-Reconditioned
S.I. 1336 Tappet Body Identification
S.I. 1334A Tappet Bore Repair, Crankcase
S.I. 1068A* Tappet Clearance (Refer to Supplement No. 1 to S.I. 1068A) (A.D. #80-25-02)
S.B. 424* Tappet Replacement, Hydraulic (A.D. #77-20-07)
S.I. 1424 Tappet, Hydraulic/Plunger Assy. P/N 78290, Installation Procedure
S.B. 402 Tappet, Valve Clearance
S.I. 1009AQ TBO, Recommended Time Between Overhaul – (Reactivated – Supersedes S.L. L201C)
S.B. 516 TCM and Bendix S-20 and S-1200 Series Impulse Coupling Magnetos, Inspection and Removal
S.L. L190 TCP, Use of Fuel Additive
S.B. 528 Teledyne Continental Ignition Systems Service Bulletin No. SB658, “Distributor Gear Maintenance”
S.I. 1444 Teledyne Continental Motors Bulletin No. 630, “Revised Timing Procedures”
S.B. 508 Teledyne Continental Motors Bulletin No. 639, “Proper Installation of Impulse Couplings”
* - Airworthiness Directives.
30
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 515 Teledyne Continental Motors Bulletin No. 643, “Maintenance Intervals for all TCM and Bendix Aircraft
Magneto and Related Equipment”
S.B. 517* Teledyne Continental Motors Critical Bulletin No. CSB641, “Poss. Open Condition of SC-20, -200 and –1200
Series Mag. Capacitor” (Refer to Supplement No. 1 to S.B. 517) (A.D. #94-06-04)
S.B. 541 Teledyne Continental Motors Critical Bulletin No. CSB-662A, “Possible Open Condition of D-3000 Series
Magneto Capacitors, P/N’s 10-382807, 10-382681 and 10-382681-1”
S.L. L222 Teledyne Continental Motors Ignition Components, Warranty Repair
S.B. 425C* Teledyne Continental Motors Mandatory Service Bulletin No. MSB645, “Inspection of Riveted Impulse
Couplings and Stop Pine” (A.D. #78-09-07)
S.I. 1470 Teledyne Continental Motors Replacement of S-20 and S-200 Series Magnetos with SC-20 and SC-200 (Short
Cover) Series Magnetos
S.L. L237 Telephone Area Code Change for Textron Lycoming, Williamsport PA
S.I. 1144 Test Stand (64765) Vertical, Use & Maintenance of 4-Lug Test Drive Assy. (74894) with
S.B. 113 Test Stand Installation, Dry Sump, for Lycoming Opposed Series Engines
S.B. 518C Thermostatic Bypass Valves, Inspection of
S.I. 1423 Thermostatic Oil Cooler Bypass Valve P/N 75944
S.I. 1255 Thermostatic Oil Cooler Bypass Valve Replacement
S.B. 330B* Throttle Arm Screw, Carburetor, Retighten and Lockwire (A.D. #72-06-05)
S.B. 366 Throttle Body Screw, Carburetor, Inspection
S.I. 1265A Throttle Lever and Shaft, Serrated
S.I. 1161 Throttle Shaft, Carburetor, Modification to Prevent Leakage
S.I. 1411 Thru-Bolt Ring – Oil Seal Application
S.I. 1123D Thru-Stud Locations, Installation of P/N 75302 Dowel, P/N 75302-P10 Oversized Dowel and P/N STD-2013
O-Ring Seal
S.I. 1326 Thru-Stud Spotface, Crankcase Repair
S.I. 1290E Thru-Stud, Crankcase, Repair of Oil Leakage, Assembled and Unassembled Engines
S.B. 212B Thru-Studs (Straight), Replacing with Necked Studs
S.I. 1029D Thru-Studs, Crankcases, Tightening Procedures for Bolts and (Refer to Supplement No. 1 and No. 2 to
S.I. 1029D)
S.B. 273A Thru-Studs, Modification to Incorporate Body Fit to Crankcase Center Main Bearing Support
S.B. 272A Thru-Studs, Retorquing of Center Main (Lycoming P/N 68751)
S.I. 1312 Thrust Bearing Replacement, Propeller Drive (Crankcase P/N LW-13082)
S.I. 1356 Thrust Bearing, Oversize, for Reduction Gear
S.B. 390A Thrust Bearing, Propeller (LW-12978), Inspection
S.I. 1292A Thrust Bearing, Stainless Steel, and Lubrication Modification
S.B. 400 Thrust Buttons, Teflon, Installation of
S.I. 1354B Thrust Face Repair, Crankcase
S.I. 1242A Thrust Washers for Starter Drive Gear
S.B. 225B Thrust Washers, Valve Rocker, Replacement of
S.I. 1029D Tightening Procedures for Crankcase Thru-Studs and Bolts (Refer to Supplement No. 1 and No. 2 to
S.I. 1029D)
S.L. L213A Time Between Overhaul (TBO) Extension Kit
S.I. 1009AQ Time Between Overhaul (TBO), Recommended (Reactivated – Supersedes S.L. L201C)
S.I. 1325A Timing Change for IO-360 Series Engines
S.I. 1437 Timing Marks, Engine
S.I. 1133 Timing Procedure for S-700 Series Magnetos
S.B. 406A Titan Fuel Pump Inspection
S.L. L232 Tool Loaning, Discontinuance
S.L. L234 Tool Rental Program
S.L. L217 Tooling Update Kits, Counterweight
S.I. 1143B Tooling Update, Counterweight Bushing and Replacement (Refer to Supplement No. 2 to S.I. 1143B)
S.I. 1450 Torque Application, Alternate Connecting Rod Bolt and
S.I. 1238A Torque Procedures and Assembly, V-Band Couplings
S.I. 1231 Torque Requirements for Fuel Injector Nozzles
S.I. 1025 Torque Setting, Recommended for Starters
* - Airworthiness Directives.
31
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1213 Torque Value, Increased for Connecting Rod Bolts
S.B. 473 Transition Assembly, P/N LW-16863
S.B. 491A* Transition Bolts, Inspection of Exhaust (A.D. #91-10-04)
S.B. 395 Transition Coupling Requirement
S.B. 521 Transition Inlet, Inspection of Marmon Flange Joint and Inspection of Exhaust System Slip Joints for Proper
Engagement
S.B. 523 Transition Waste Gate, Replacement of
S.B. 448A* Transition Waste Gate Assy., Turbocharger (A.D. #80-17-10)
S.I. 1388C Troubleshooting of the O-235 Series Engines (Refer to Supplement No. 1 to S.I. 1388C) (A.D. #80-25-02)
S.I. 1391 Tube Alignment, Exhaust Manifold
S.B. 345 Tube Assy., Modification, Oil Suction
S.I. 1167 Tube Assy., Sludge and Test
S.I. 1190 Tube Modification, Exhaust Manifold
S.B. 538A Tube Replacement, Air Inlet
S.I. 1390 Tube Replacement, Carburetor Idle
S.I. 1399 Tube Replacement, Turbocharger Oil Drain
S.I. 1277A Tube Retaining Components, Shroud
S.I. 1284A Tube Retaining Spring Replacement
S.I. 1347 Tube Seal Surface, Shroud, Repair of
S.I. 1487 Tube, Oil Drainback, Clearance
S.B. 545 A Tube, Oil Filler, Replacement
S.B. 519 Tube, Shroud, Retaining Springs Removal of LW-14995 Before Further Flight
S.B. 375A Tube, Support, Cross Shaft Moisture Seal
S.I. 1321 Tubes, Oil Transfer and Supply, Propeller
S.I. 1215 Tubes, Shroud, Correct Installation for Up-Exhaust Engines
S.I. 1075A Tubes, Shroud, Procedure for Removing from Top Exhaust Cylinders
S.I. 1113A Tubes, Sludge, Crankshaft Assy. Revised to Eliminate
S.B. 347 Turbine Housing, Inspection & Replacement, AiResearch Bulletin No. 571-1
S.B. 329A Turbine Housing Inspection, AiResearch Bulletin No. TP60-0100
S.B. 452A Turbo Inspection, AiResearch Bulletin No. TP60-0121
S.B. 405 Turbo Strut Spacer
S.I. 1339A Turbocharger Bracket, TIO & TIGO-541-E
S.B. 377 Turbocharger Check Valve and Oil Drain Modification
S.L. L184A Turbocharger Control Tester Set
S.I. 1187J Turbocharger Density Controller Adjustment
S.I. 1300 Turbocharger Inlet Oil Pressure, Increased
S.B. 383 Turbocharger Inspection, AiResearch Bulletin No. TP60-0101, “Insp. of Model T1823 Turbochargers with
Stainless Steel Turbine Housings”
S.I. 1313A Turbocharger Installation, Oil Squirt
S.I. 1431 Turbocharger Linkage and Fuel Metering Adjustments (Refer to Supplement No. 1 to S.I. 1431)
S.B. 361 Turbocharger Modification, AiResearch Bulletin No. 1172-1A
S.B. 420 Turbocharger Mount Assy.
S.B. 463 Turbocharger Mounting Bracket Inspection
S.I. 1415 Turbocharger Mounting Hardware, New
S.B. 426* Turbocharger Oil Drain Flange Replacement (A.D. #80-02-13)
S.B. 534 Turbocharger Oil Drain Tank Inspection/Replacement
S.I. 1399 Turbocharger Oil Drain Tube Replacement
S.B. 389 Turbocharger Oil Inlet Valve Replacement
S.I. 1122A Turbocharger Parts, Repair Procedures for
S.I. 1328 Turbocharger Replacement, AiResearch Letter No. TP61-0002
S.I. 1315A Turbocharger Strut Bracket and Clamp Installation
S.I. 1384A Turbocharger Support Assy. with Large Spools & Support Installation Instructions
S.B. 448A* Turbocharger Transition Waste Gate Assy. (A.D. #80-17-10)
S.I. 1449 Turbocharger, (46A21184), Rotormaster, Installation of
* - Airworthiness Directives.
32
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.B. 379 Turbocharger, AiResearch Bulletin No. TP60-0103, “Inspection of Remanufactured Waste Gate Valve Assys.”
S.I. 1223 Turbocharger, AiResearch Instruction No. 969-1, “Freeing Turbine Shaft”
S.I. 1416 Turbocharger, AiResearch Letter No. TP61-0039, “Bypass Valve Modification”
S.B. 313B Turbocharger, Maintenance and Inspection
S.B. 408 Turbocharger, Rajay Industries Service Letter No. 21A, “Inspection of Turbine (Exhaust) Housings”
S.I. 1286B Turbochargers (TE0659) with Stainless Steel Housings
S.B. 391A Turbochargers, AiResearch Bulletin No. TP60-0105, “Turbocharger Replacement or Modification” (Refer to
Supplement No. 1 to S.B. 391A)
S.B. 531C Turbochargers, Inspection on TIO-540-AE2A Model Engines
S.I. 1215 Up-Exhaust Engines, Correct Installation of Shroud Tubes
S.B. 398 Use of Incorrect Fuel, Recommendations Regarding
S.L. L209A Utilization of Textron Lycoming Piston Engine Overhaul Manuals and Parts Catalogs
S.I. 1238A V-Band Couplings, Assembly and Torque Procedures
S.B. 492A V-Band Couplings, Redesigned, for Tailpipe Installation
S.I. 1369 Vacuum Pump Pad Oil Supply Port
S.I. 1193A Valve Failure, Inspection in Event of
S.B. 503 Valve Guide Replacement, Exhaust, on TIO-540-AF1A Engines
S.I. 1256E Valve Guides, for Service Use
S.B. 490A Valve Guides, Intake and Exhaust, Installation of
S.I. 1483 Valve Leak Check
S.B. 314C* Valve Lifting, Replacement of Limited Travel (A.D. #68-08-08)
S.B. 419 Valve Replacement, Exhaust – TO-360
S.L. L181 Valve Replacement, Intake (Service Instructions No. 1280C, 1262A, 1302A)
S.I. 1255 Valve Replacement, Thermostatic Oil Cooler Bypass
S.B. 348A Valve Rocker Assy., Clearance Between Cylinder Head and
S.I. 1176 Valve Rocker Shaft Repair
S.B. 225B Valve Rocker Thrust Washers, Replacement of
S.I. 1182A Valve Rockers, High Lift, for Improved Performance
S.B. 540 Valve Seat Inspection
S.I. 1172C Valve Seat Repair or Replacement and Adjustable Oil Pressure Relief Valve Installation
S.I. 1092A Valve Seat Replacement Tools and Procedures
S.I. 1316A Valve Seat, Oil Cooler Bypass, Repair of
S.I. 1192 Valve Spring Compressor No. ST-266
S.I. 1240C Valve Spring Replacement
S.I. 1381 Valve Spring Seat, Upper Exhaust & Hydraulic Lifter, Replacement
S.I. 1425A Valve Sticking, Maintenance Procedures to Reduce Possibility of
S.L. L197A Valve Sticking, Recommendations to Avoid
S.B. 402 Valve Tappet Clearance
S.B. 450 Valve, AiResearch Bulletin No. TP60-0119, “Bypass Valve Modification”
S.B. 362A Valve, Check, Fuel Vent Line Installation
S.I. 1214A Valve, Exhaust Bypass: Reset for Critical Altitude
S.I. 1479A Valve, Exhaust Guide Kit, Oil Cooler, TIO-540-AF1A
S.I. 1485 Valve, Exhaust, and Guide Identification Procedure
S.B. 388B Valve, Exhaust, and Guide, Procedure to Determine Condition (Refer to Supplement No. 1 to S.B. 388B)
S.I. 1116C Valve, Exhaust, Guide Clearance Modification
S.I. 1200A Valve, Exhaust, Guide, Honing During Replacement
S.B. 404 Valve, Exhaust, Inspection (High Lead Fuel Operation)
S.I. 1430 Valve, Exhaust, Replacement
S.I. 1268C Valve, Exhaust, Rocker Assembly
S.I. 1468A Valve, Exhaust, Rocker Assembly
S.B. 384 Valve, Fuel Drain Check, Modification
S.I. 1442 Valve, Improved Oil Filter Bypass
S.B. 412B* Valve, Intake and Exhaust, Rocker Arm Retaining Stud (A.D. #77-20-07)
S.I. 1337A Valve, Manifold Pressure Relief – TIGO-541
* - Airworthiness Directives.
33
ALPHABETICAL LISTING OF TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
PUB. NO. TITLE
S.I. 1293 Valve, Manifold Pressure Relief – TIO-541
S.I. 1454 Valve, Parallel Rocker Arm Installation
S.I. 1008B Valve, Pressure Relief, Instructions for Installation
S.I. 1273A Valve, Relief, Installation in Oil Pump
S.I. 1302A Valve, Rotator Type, with Small Diameter Head
S.I. 1423 Valve, Thermostatic Oil Cooler Bypass, P/N 75944
S.B. 377 Valve, Turbocharger Check, and Oil Drain Modification
S.B. 389 Valve, Turbocharger Oil Inlet Check, Replacement
S.B. 447B* Valve, Upper Exhaust Spring Seats, Inspection (A.D. #80-14-07)
S.I. 1136A Valves, Exhaust with ½” Diameter Stems, in Parallel Valve Cylinders (Refer to Supplement No. 1 to
S.I. 1136A)
S.B. 502 Valves, Intake, P/N LW-13262, Replacement, Etched with Date Code K-L
S.I. 1280C Valves, Intake, Rotator Type
S.B. 301B Valves, Maintenance Procedures and Service Limitations
S.I. 1262A Valves, Small Head Intake, and Venturi Seats
S.B. 518C Valves, Thermostatic Bypass, Inspection of
S.B. 494* Vent Fittings, Fuel Pump, Restricted, Installation of (A.D. #91-08-07)
S.B. 497* Vent Fittings, Fuel Pump, Restricted, New, Installation in AN Drive (A.D. #91-08-07)
S.B. 487* Vent, Fuel Pump, Restriction (A.D. #89-15-10)
S.I. 1262A Venturi Seats and Small Head Intake Valves
S.B. 297A* Venturi, One Piece and Main for Marvel-Schebler MA-4-5 Carburetors (A.D. #63-22-03)
S.I. 1224 VO-435-B1A, Starter and Magneto Modification
S.L. L221B Warranty Repair of Precision Fuel Control Components
S.L. L222 Warranty Repair of Teledyne Continental Motors Ignition Components
S.L. L239 Warranty Return Parts, Preservation of
S.B. 448A* Waste Gate Assy., Turbocharger Transition (A.D. #80-17-70)
S.B. 418 Waste Gate Control Cable Rod End Replacement
S.B. 523 Waste Gate Transition, Replacement of
S.B. 472 Wide Cylinder Flange Crankcases, Disassembly
S.I. 1419 Wiring Harness, Magneto, Modification of
* - Airworthiness Directives.
34
NUMERICAL LISTING OF ACTIVE TEXTRON LYCOMING
SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
Service Bulletins:
113, 178A, 183A, 201E, 212B, 213A, 222D, 225B, 235A, 238, 240R, 245D, 246, 247, 253A, 258, 271A, 272A, 273A, 276,
293B, 297A, 300B, 301B, 302A, 305B, 310, 311, 313B, 314C, 318B, 319B, 326A, 327C, 329A, 330B, 331, 333, 334C, 337A,
340, 341, 342D, 343B, 344, 345, 347, 348A, 349, 351B, 352, 353A, 354, 356, 357, 359, 361, 362A, 363, 364A, 365, 366, 367F,
369I, 370, 371B, 372B, 373, 374, 375A, 376, 377, 379, 380A, 382, 383, 384, 386, 387, 388B, 389, 390A, 391A, 392B, 393C,
394, 395, 397, 398, 399, 400, 401, 402, 403, 404, 405, 406A, 407A, 408, 409, 410, 411B, 412B, 414, 415A, 416A, 417A, 418,
419, 420, 421, 422A, 423, 424, 425C, 426, 427A, 428, 429, 430, 431, 432, 433A, 434, 435, 436, 437, 438A, 439A, 440, 441, 442,
443, 444A, 445, 446D, 447B, 448A, 449, 450, 451, 452A, 453D, 457A, 458, 459, 460, 461, 463, 464A, 465C, 466, 467, 468C,
469, 470, 471A, 472, 473, 474, 475B, 477A, 478A, 479, 480D, 481, 482, 483, 484, 485, 486, 487, 488A, 489A, 490A, 491A,
492A, 494, 495A, 496, 497, 498B, 499C, 500A, 501B, 502, 503, 504, 505B, 506, 507, 508, 509, 510, 511, 514, 515, 516, 517,
518C, 519, 520, 521, 522, 523, 524, 525A, 526, 527C, 528, 529A, 530A, 531C, 532, 533A, 534, 536, 537, 538A, 539A, 540, 541,
543A, 544, 545A, 547, 548, 549.
Service Letters:
L109, L114AK, L132, L142B, L147B, L150T, L154B, L156, L159D, L161C, L162B, L171, L172B, L173B, L177A, L180A,
L181, L182, L183, L184A, L185B, L186, L188, L189, L190, L192B, L193, L195, L196, L197A, L199, L200, L202B, L203,
L204, L206A, L207, L208, L209A, L210, L213A, L214A, L215, L216, L217, L218, L220B, L221B, L222, L223, L225, L226,
L227A, L228, L229B, L230, L231, L232, L233, L234, L235A, L237, L239.
Service Instructions:
1002, 1008B, 1009AQ, 1011H, 1012F, 1014M, 1016C, 1020B, 1025, 1026, 1029D, 1032H, 1037L, 1040A, 1042W, 1043A,
1044, 1047B, 1059C, 1060H, 1062, 1068A, 1069A, 1070L, 1072, 1075A, 1076, 1079B, 1080A, 1084A, 1092A, 1094D, 1098G,
1105A, 1106D, 1108C, 1109, 1110C, 1111, 1112E, 1113A, 1116C, 1118A, 1120, 1121, 1122A, 1123D, 1125B, 1126, 1129B,
1130, 1132A, 1133, 1135A, 1136A, 1138B, 1139, 1140, 1141, 1142B, 1143B, 1144, 1145, 1148B, 1149, 1152A, 1154H, 1156A,
1157, 1158, 1159, 1161, 1164A, 1166A, 1167, 1168B, 1169C, 1170, 1171, 1172C, 1173, 1176, 1177B, 1180B, 1181, 1182A,
1185, 1186, 1187J, 1189, 1190, 1191A, 1192, 1193A, 1196, 1197A, 1200A, 1203, 1204B, 1205, 1206, 1208, 1209B, 1210B,
1211D, 1212, 1213, 1214A, 1215, 1216, 1218A, 1221A, 1223, 1224, 1225D, 1226, 1227, 1228A, 1230B, 1231, 1232, 1234,
1236A, 1237A, 1238A, 1239, 1240C, 1241C, 1242A, 1243, 1244, 1246A, 1247, 1248B, 1249, 1250, 1251, 1252C, 1253, 1254,
1255, 1256E, 1257F, 1259, 1260, 1262A, 1263B, 1264, 1265A, 1266, 1267C, 1268C, 1270A, 1271A, 1273A, 1274B, 1275B,
1276, 1277A, 1278, 1279B, 1280C, 1282, 1283A, 1284A, 1285B, 1286B, 1287, 1288, 1289A, 1290E, 1291, 1292A, 1293, 1294,
1295, 1296, 1297, 1298, 1299A, 1300, 1301A, 1302A, 1304J, 1305C, 1306A, 1307B, 1308D, 1309, 1310A, 1311A, 1312,
1313A, 1314, 1315A, 1316A, 1318, 1320, 1321, 1323A, 1324A, 1325A, 1326, 1327, 1328, 1329A, 1330A, 1331A, 1332, 1333,
1334A, 1335, 1336, 1337A, 1338, 1339A, 1340, 1341, 1342, 1343A, 1344, 1345, 1346A, 1347, 1350A, 1351, 1352A, 1354B,
1355, 1356, 1357A, 1359, 1360, 1361, 1362, 1363, 1364, 1365, 1366A, 1367, 1368, 1369, 1370, 1373, 1374B, 1375, 1376, 1377,
1378, 1379, 1380, 1381, 1382, 1383, 1384A, 1385, 1386A, 1387, 1388C, 1389, 1390, 1391, 1392, 1393, 1394, 1395A, 1396,
1397, 1398A, 1399, 1400, 1402, 1403, 1404A, 1406B, 1407, 1408A, 1409B, 1410, 1411, 1413, 1414A, 1415, 1416, 1417, 1418,
1419, 1420, 1421, 1422A, 1423, 1424, 1425A, 1427B, 1428, 1430, 1431, 1432A, 1433, 1434, 1435, 1436, 1437, 1438, 1439,
1442, 1443E, 1444, 1445, 1446, 1447B, 1448, 1449, 1450, 1451A, 1452, 1453, 1454, 1455, 1457, 1458B, 1459, 1461, 1462,
1463, 1464, 1465, 1466, 1467, 1468A, 1469, 1470, 1471, 1472, 1473, 1474, 1479A, 1480, 1481, 1483, 1484, 1485, 1486A, 1487,
1489, 1491, 1492C, 1494, 1495, 1497, 1498, 1500, 1502A, 1503, 1504, 1506.
35
![](asset-25.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
O-235 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 222D, 235A, 238, 240R, 301B, 330B, 340, 341, 343B, 357, 359, 366, 369I, 370, 373, 374, 376, 388B, 398, 400,
401, 425C, 432, 439A, 449, 453D, 457A, 458, 464A, 468C, 475B, 478A, 480D, 481, 486, 488A, 495A, 498B, 504, 508, 515, 516,
517, 518C, 522, 524, 528, 530A, 533A, 540, 548.
INACTIVE SERVICE BULLETINS:
121A, 124, 125, 128, 129, 131, 132, 133, 134, 135, 143B, 151, 154, 158, 159, 160, 161E, 165, 167C, 171, 174, 175I, 179A, 186C,
194, 197E, 202C, 205, 207A, 211, 214A, 218A, 226, 228, 234, 236, 242A, 243A, 244, 250A, 264B, 268F, 277, 278, 286A, 299,
309, 323, 355, 360, 385C, 456F.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L132, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L173B, L177A, L180A, L181, L182, L183,
L185B, L186, L188, L189, L190, L192B, L193, L195, L196, L197A, L199, L200, L203, L206A, L207, L209A, L210, L213A,
L214A, L215, L216, L218, L221B, L222, L223, L226, L227A, L228, L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L108A, L110, L112A, L115, L116A, L117, L118, L119, L120, L121A, L127, L129, L131C, L134A, L135A,
L136, L145, L151, L153, L157B, L160, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1014M, 1029D, 1037L, 1042W, 1043A, 1047B, 1059C, 1060H, 1068A, 1070L, 1080A, 1092A, 1094D, 1098G,
1105A, 1106D, 1110C, 1111, 1121, 1125B, 1126, 1129B, 1130, 1132A, 1135A, 1139, 1141, 1149, 1154H, 1157, 1164A, 1172C,
1173, 1176, 1181, 1191A, 1193A, 1197A, 1200A, 1204B, 1205, 1206, 1212, 1218A, 1221A, 1226, 1230B, 1237A, 1240C,
1241C, 1243, 1246A, 1253, 1256E, 1260, 1265A, 1266, 1271A, 1276, 1278, 1282, 1285B, 1294, 1301A, 1304J, 1311A, 1316A,
1324A, 1327, 1332, 1334A, 1341, 1357A, 1362, 1366A, 1374B, 1375, 1377, 1382, 1383, 1385, 1388C, 1389, 1393, 1400, 1409B,
1411, 1418, 1423, 1425A, 1427B, 1433, 1435, 1437, 1443E, 1447B, 1457, 1458B, 1461, 1462, 1464, 1466, 1470, 1472, 1480,
1481, 1483, 1484, 1485, 1487, 1492C, 1504.
INACTIVE SERVICE INSTRUCTIONS:
1006A, 1009AH, 1010B, 1015, 1017, 1018, 1019, 1021, 1022, 1023D, 1038B, 1041, 1049, 1050A, 1052, 1054B, 1055, 1073B,
1074, 1081B, 1088B, 1091, 1096, 1097, 1119, 1124B, 1134, 1147, 1148B, 1150A, 1151, 1153A, 1163, 1179D, 1183, 1233, 1269,
1272, 1281, 1303, 1319B.
36
![](asset-26.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
O-290 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 212B, 222D, 235A, 238, 240R, 301B, 330B, 343B, 357, 366, 369I, 376, 388B, 398, 400, 401, 425C, 439A,
464A, 466, 475B, 480D, 495A, 498B, 504, 516, 524, 530A, 533A, 548.
INACTIVE SERVICE BULLETINS:
121A, 124, 125, 130, 135, 136, 137, 138, 143B, 150, 151, 152, 154, 158, 159, 161E, 162, 164, 165, 167C, 169, 171, 174, 175I,
179A, 186C, 194, 197E, 198, 200, 202C, 205, 207A, 211, 214A, 218A, 219, 226, 228, 234, 236, 242A, 243A, 244, 250A, 256A,
264B, 267, 268F, 277, 278, 286A, 299, 309, 323, 355, 360, 456F.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L132, L142B, L147B, L154B, L156, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L186, L188,
L190, L192B, L193, L195, L196, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L218, L220B, L221B, L222,
L223, L226, L227A, L228, L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L104B, L108A, L110, L112A, L113, L115, L116A, L117, L118, L119, L120, L121A, L127, L129, L131C,
L134A, L135A, L136, L145, L151, L153, L160, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1014M, 1029D, 1037L, 1042W, 1043A, 1059C, 1060H, 1068A, 1070L, 1080A, 1092A, 1094D, 1098G,
1105A, 1106D, 1111, 1121, 1125B, 1126, 1129B, 1130, 1132A, 1135A, 1139, 1141, 1154H, 1157, 1164A, 1172C, 1173, 1176,
1181, 1191A, 1193A, 1197A, 1205, 1206, 1218A, 1221A, 1230B, 1240C, 1241C, 1243, 1246A, 1255, 1256E, 1265A, 1276,
1278, 1282, 1285B, 1294, 1301A, 1304J, 1311A, 1324A, 1327, 1334A, 1336, 1341, 1366A, 1377, 1382, 1389, 1409B, 1418,
1424, 1425A, 1427B, 1433, 1435, 1437, 1447B, 1458B, 1462, 1464, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1007, 1009AH, 1010B, 1015, 1017, 1018, 1019, 1021, 1022, 1023D, 1034, 1035B, 1038B, 1041, 1049, 1050A, 1051, 1053C,
1054B, 1055, 1073B, 1074, 1081B, 1088B, 1091, 1096, 1097, 1119, 1124B, 1134, 1147, 1148B, 1150A, 1151, 1153A, 1163,
1179D, 1183, 1233, 1269, 1272, 1281, 1319B.
37
![](asset-27.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
O, IO, AEIO, AIO, LIO-320 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 212B, 213A, 222D, 235A, 238, 240R, 253A, 258, 271A, 272A, 273A, 293B, 300B, 301B, 305B, 330B, 340,
341, 342D, 343B, 357, 366, 367F, 369I, 370, 373, 374, 376, 382, 388B, 398, 399, 400, 401, 403, 404, 406A, 407A, 410, 412B,
414, 415A, 416A, 422A, 423, 424, 425C, 427A, 433A, 435, 438A, 439A, 442, 446D, 447B, 449, 457A, 458, 461, 464A, 466,
468C, 472, 475B, 477A, 478A, 480D, 486, 488A, 495A, 498B, 500A, 501B, 504, 505B, 508, 515, 516, 517, 518C, 519, 524,
525A, 526, 527C, 528, 529A, 530A, 533A, 539A, 540, 541, 543A, 548.
INACTIVE SERVICE BULLETINS:
121A, 125, 143B, 151, 161E, 167C, 171, 174, 175I, 176, 179A, 185, 186C, 190, 192A, 193, 194, 195A, 196, 197E, 198, 202C,
203C, 204, 205, 207A, 209A, 211, 214A, 218A, 219, 226, 228, 234, 236, 242A, 243A, 244, 250A, 254A, 256A, 262, 264B, 265,
267, 268F, 274, 277, 278, 286A, 298, 299, 307, 309, 322A, 323, 355, 360, 385C, 413, 456F.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L173B, L177A, L180A, L181, L182, L183, L185B,
L186, L188, L189, L190, L192B, L193, L195, L197A, L199, L200, L202B, L203, L206A, L207, L208, L209A, L210, L214A,
L216, L218, L220B, L221B, L222, L223, L225, L226, L227A, L228, L229B, L230, L232, L233, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L012, L103B, L104B, L108A, L110, L112A, L113, L115, L116A, L117, L118, L119 L120, L121A, L126A, L127, L129, L131C,
L134A, L135A, L136, L141, L145, L149, L151, L153, L157B, L158, L160, L164, L169A, 170, L176A, L178C, L179C, L187,
L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1008B, 1009AQ, 1011H, 1014M, 1020B, 1029D, 1037L, 1042W, 1043A, 1047B, 1059C, 1060H, 1070L, 1076, 1080A,
1092A, 1094D, 1098G, 1105A, 1106D, 1110C, 1111, 1112E, 1113A, 1121, 1123D, 1125B, 1126, 1129B, 1130, 1132A, 1135A,
1136A, 1139, 1141, 1148B, 1154H, 1157, 1164A, 1166A, 1172C, 1173, 1176, 1181, 1189, 1191A, 1193A, 1197A, 1200A,
1204B, 1205, 1206, 1218A, 1221A, 1225D, 1226, 1228A, 1230B, 1237A, 1240C, 1241C, 1243, 1249, 1253, 1255, 1256E, 1260,
1265A, 1266, 1267C, 1270A, 1274B, 1275B, 1276, 1277A, 1278, 1282, 1285B, 1290E, 1294, 1301A, 1304J, 1305C, 1310A,
1311A, 1314, 1316A, 1324A, 1327, 1332, 1334A, 1335, 1336, 1340, 1341, 1343A, 1345, 1352A, 1354B, 1357A, 1360, 1364,
1365, 1367, 1368, 1370, 1373, 1374B, 1375, 1377, 1378, 1380, 1382, 1385, 1386A, 1387, 1389, 1392, 1395A, 1397, 1400, 1402,
1404A, 1406B, 1409B, 1414A, 1417, 1418, 1420, 1423, 1424, 1425A, 1427B, 1432A, 1433, 1435, 1437, 1443E, 1446, 1447B,
1453, 1454, 1457, 1458B, 1461, 1462, 1464, 1466, 1470, 1472, 1473, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1007, 1009AH, 1010B, 1015, 1017, 1018, 1019, 1021, 1022, 1023D, 1031, 1035B, 1038B, 1041, 1049, 1050A, 1051A, 1052,
1054B, 1055, 1057, 1063, 1073B, 1074, 1081B, 1088B, 1091, 1093B, 1096, 1097, 1107, 1115, 1119, 1124B, 1127A, 1134, 1147,
1148B, 1150A, 1151, 1153A, 1163, 1178, 1179D, 1183, 1199, 1233, 1269, 1272, 1281, 1303, 1319B.
38
![](asset-28.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
O-340 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 212B, 222D, 235A, 238, 240R, 253A, 271A, 272A, 273A, 297A, 301B, 330B, 343B, 357, 366, 369I, 370,
388B, 398, 401, 425C, 439A, 464A, 466, 475B, 480D, 495A, 515, 516, 517, 518C, 524, 528, 533A, 548.
INACTIVE SERVICE BULLETINS:
121A, 125, 143B, 161E, 167C, 174, 175I, 179A, 186C, 192A, 194, 197E, 198, 202C, 205, 207A, 209A, 211, 214A, 218A, 219,
226, 228, 234, 236, 237A, 242A, 243A, 244, 250A, 254A, 256A, 262, 264B, 265, 267, 268F, 274, 277, 298, 307, 309, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L186, L188, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L218, L220B, L221B, L222, L223, L226,
L227A, L228, L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L104B, L108A, L110, L112A, L113, L116A, L117, L118, L119, L120, L121A, L127, L129, L130, L131C,
L134A, L135A, L136, L145, L151, L153, L157B, L160, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1008B, 1009AQ, 1011H, 1014M, 1020B, 1029D, 1037L, 1042W, 1043A, 1047B, 1059C, 1060H, 1070L, 1076, 1080A,
1092A, 1094D, 1098G, 1105A, 1106D, 1111, 1112E, 1121, 1123D, 1125B, 1126, 1129B, 1130, 1132A, 1135A, 1136A, 1139,
1141, 1148B, 1154H, 1157, 1164A, 1172C, 1173, 1176, 1181, 1191A, 1193A, 1197A, 1200A, 1204B, 1205, 1206, 1218A,
1221A, 1228A, 1230B, 1240C, 1241C, 1243, 1255, 1256E, 1265A, 1267C, 1276, 1277A, 1278, 1282, 1285B, 1294, 1301A,
1304J, 1311A, 1316A, 1324A, 1327, 1334A, 1336, 1340, 1377, 1382, 1409B, 1418, 1423, 1424, 1425A, 1427B, 1433, 1435,
1437, 1447B, 1454, 1458B, 1462, 1464, 1470, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1007, 1009AH, 1010B, 1015, 1017, 1018, 1019, 1021, 1022, 1023D, 1031, 1038B, 1041, 1049, 1050A, 1051A, 1052, 1053C,
1054B, 1057, 1073B, 1074, 1081B, 1088B, 1091, 1093B, 1096, 1097, 1119, 1124B, 1134, 1147, 1148B, 1150A, 1151, 1153A,
1163, 1175, 1179D, 1233, 1272, 1281, 1303, 1319B.
39
![](asset-29.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
O, IO, AEIO, AIO, HIO, HO, LO, TO, TIO-360 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 212B, 222D, 225B, 235A, 238, 240R, 271A, 272A, 273A, 297A, 301B, 302A, 305B, 318B, 326A, 327C, 330B,
340, 341, 342D, 343B, 347, 348A, 349, 352, 357, 363, 364A, 365, 366, 367F, 369I, 370, 373, 374, 376, 380A, 382, 388B, 398,
399, 400, 401, 402, 403, 405, 406A, 408, 409, 410, 411B, 414, 415A, 416A, 418, 419, 420, 425C, 426, 427A, 428, 429, 433A,
434, 438A, 439A, 442, 443, 446D, 447B, 449, 451, 457A, 458, 460, 461, 464A, 465C, 466, 468C, 472, 473, 475B, 477A, 478A,
480D, 483, 485, 486, 488A, 495A, 496, 497, 500A, 501B, 502, 505B, 508, 515, 516, 517, 518C, 519, 520, 524, 525A, 526, 527C,
528, 529A, 530A, 533A, 539A, 540, 541, 543A, 548, 549.
INACTIVE SERVICE BULLETINS:
125, 161E, 167C, 175I, 179A, 186C, 194, 197E, 198, 202C, 205, 207A, 209A, 211, 214A, 218A, 226, 228, 234, 236, 237A,
242A, 243A, 244, 250A, 254A, 256A, 259, 262, 264B, 265, 267, 268F, 274, 277, 278, 286A, 289, 298, 299, 304A, 306, 307, 309,
322A, 323, 328, 336C, 355, 360, 381C, 385C, 396, 454B, 455B, 456F.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L150T, L154B, L159D, L161C, L162B, L171, L172B, L173B, L177A, L180A, L181, L182, L183,
L184A, L185B, L186, L188, L189, L190, L192B, L193, L195, L197A, L199, L200, L202B, L203, L204, L206A, L207, L208,
L209A, L210, L214A, L216, L217, L218, L220B, L221B, L222, L223, L226, L227A, L228, L229B, L230, L232, L233, L234,
L237, L239.
INACTIVE SERVICE LETTERS:
L101, L102, L103B, L104B, L108A, L110, L112A, L113, L115, L116A, L117, L118, L119, L120, L121A, L127, L129, L130,
L131C, L134A, L135A, L136, L140F, L141, L145, L149, L151, L153, L157B, L158, L160, L164, L169A, L170, L175, L176A,
L178C, L179C, L187, L191A, L194B, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1008B, 1009AQ 1011H, 1012F, 1014M, 1020B, 1029D, 1037L, 1040A, 1042W, 1043A, 1047B, 1059C, 1060H, 1070L,
1072, 1076, 1080A, 1092A, 1094D, 1098G, 1105A, 1106D, 1110C, 1111, 1112E, 1113A, 1116C, 1121, 1122A, 1123D, 1125B,
1126, 1129B, 1130, 1132A, 1135A, 1136A, 1139, 1141, 1142B, 1143B, 1148B, 1152A, 1154H, 1157, 1164A, 1166A, 1168B,
1172C, 1173, 1176, 1180B, 1181, 1191A, 1193A, 1197A, 1200A, 1204B, 1205, 1206, 1213, 1216, 1218A, 1221A, 1223, 1225D,
1226, 1228A, 1230B, 1237A, 1238A, 1240C, 1241C, 1243, 1253, 1255, 1256E, 1257F, 1260, 1262A, 1263B, 1265A, 1266,
1267C, 1270A, 1274B, 1275B, 1276, 1277A, 1278, 1280C, 1282, 1284A, 1285B, 1287, 1289A, 1290E, 1294, 1299A, 1301A,
1302A, 1304J, 1307B, 1310A, 1311A, 1314, 1316A, 1318, 1320, 1324A, 1325A, 1327, 1332, 1333, 1334A, 1335, 1336, 1340,
1341, 1343A, 1345, 1346A, 1347, 1350A, 1352A, 1354B, 1357A, 1359, 1361, 1363, 1364, 1367, 1369, 1370, 1373, 1374B, 1375,
1376, 1377, 1378, 1380, 1381, 1382, 1385, 1386A, 1387, 1390, 1397, 1399, 1400, 1402, 1404A, 1406B, 1407, 1409B, 1413,
1414A, 1415, 1417, 1418, 1419, 1420, 1421, 1423, 1424, 1425A, 1427B, 1428, 1430, 1431, 1432A, 1433, 1435, 1436, 1437,
1438, 1442, 1443E, 1445, 1446, 1447B, 1449, 1450, 1452, 1453, 1454, 1455, 1457, 1458B, 1459, 1461, 1462, 1464, 1465, 1467,
1469, 1470, 1472, 1473, 1481, 1483, 1484, 1485, 1487, 1489, 1491, 1492C, 1497, 1498, 1502A, 1506.
INACTIVE SERVICE INSTRUCTIONS:
1003, 1009AH, 1010B, 1015, 1017, 1018, 1019, 1021, 1022, 1023D, 1031, 1035B, 1038B, 1041, 1049, 1050A, 1051A, 1052,
1053C, 1054B, 1055, 1057, 1061A, 1063, 1073B, 1074, 1078, 1081B, 1088B, 1089, 1091, 1093B, 1096, 1097, 1099, 1107, 1119,
1124B, 1127A, 1131, 1134, 1147, 1148B, 1150A, 1151, 1153A, 1155, 1162, 1163, 1175, 1178, 1179D, 1184C, 1220, 1233, 1245,
1258, 1269, 1272, 1281, 1303, 1319B, 1358.
40
![](asset-2a.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
VO & IVO-360 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 212B, 222D, 238, 240R, 271A, 273A, 297A, 301B, 305B, 314C, 330B, 342D, 343B, 357, 366, 369I, 376, 382,
388B, 398, 400, 401, 433A, 439A, 442, 464A, 466, 472, 475B, 480D, 495A, 508, 515, 516, 524, 527C, 530A, 533A.
INACTIVE SERVICE BULLETINS:
125, 167C, 179A, 186C, 194, 197E, 198, 202C, 205, 207A, 211, 214A, 218A, 226, 228, 234, 242A, 243A, 244, 250A, 262, 267,
268F, 274, 277, 278, 309, 322A, 355, 360, 381C, 456F.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L186, L188, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L220B, L221B, L222, L223, L226,
L227A, L228, L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L108A, L110, L112A, L116A, L117, L119, L120, L121A, L127, L129, L130, L131C, L134A, L135A, L136,
L145, L149, L151, L153, L160, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1008B, 1009AQ, 1011H, 1014M, 1020B, 1029D, 1037L, 1042W, 1043A, 1047B, 1059C, 1060H, 1070L, 1076, 1080A,
1092A, 1094D, 1098G, 1105A, 1106D, 1111, 1112E, 1113A, 1121, 1123D, 1125B, 1126, 1129B, 1130, 1132A, 1135A, 1139,
1141, 1154H, 1157, 1164A, 1166A, 1172C, 1173, 1176, 1181, 1191A, 1193A, 1197A, 1205, 1206, 1213, 1218A, 1228A, 1230B,
1240C, 1241C, 1243, 1255, 1256E, 1265A, 1267C, 1274B, 1275B, 1277A, 1278, 1282 1285B, 1294, 1301A, 1304J, 1307B,
1311A, 1314, 1316A, 1324A, 1327, 1334A, 1335, 1336, 1340, 1359, 1377, 1378, 1382, 1404A, 1409B, 1414A, 1418, 1423,
1424, 1425A, 1433, 1435, 1437, 1447B, 1450, 1454, 1458B, 1462, 1464, 1470, 1472, 1481, 1483, 1484, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1010B, 1015, 1017, 1019, 1021, 1022, 1023D, 1031, 1038B, 1041, 1050A, 1053C, 1054B, 1055, 1063, 1073B, 1074,
1081B, 1088B, 1091, 1093B, 1096, 1097, 1119, 1124B, 1127A, 1134, 1147, 1148B, 1150A, 1153A, 1163, 1175, 1178, 1179D,
1233, 1269, 1272, 1281, 1319B.
41
![](asset-2b.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
O-435 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 212B, 222D, 238, 240R, 297A, 301B, 357, 366, 369I, 388B, 398, 401, 439A, 466, 475B, 480D, 533A.
INACTIVE SERVICE BULLETINS:
124, 125, 130, 141, 148D, 151, 154, 155, 161E, 167C, 172, 175I, 177A, 179A, 186C, 194, 197E, 198, 200, 202C, 205, 207A, 211,
214A, 218A, 226, 229, 237A, 242A, 243A, 244, 250A, 256A, 267, 268F, 277, 286A, 299, 309, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L132, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L186, L188, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L209A, L214A, L216, L220B, L221B, L222, L223, L226, L227A,
L228, L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103, L108A, L110, L112A, L117, L118, L119, L120, L121A, L122, L127, L129, L130, L131C, L134A, L135A, L136,
L145, L151, L153, L160, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1014M, 1025, 1029D, 1037L, 1042W, 1043A, 1059C, 1060H, 1070L, 1076, 1080A, 1092A, 1094D,
1098G, 1106D, 1111, 1112E, 1121, 1123D, 1125B, 1126, 1130, 1132A, 1135A, 1136A, 1139, 1141, 1154H, 1172C, 1173, 1176,
1181, 1191A, 1193A, 1197A, 1205, 1240C, 1241C, 1243, 1256E, 1265A, 1278, 1285B, 1301A, 1304J, 1311A, 1324A, 1334A,
1336, 1340, 1377, 1409B, 1418, 1424, 1425A, 1427B, 1435, 1437, 1447B, 1454, 1458B, 1462, 1464, 1472, 1481, 1483, 1484,
1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1015, 1017, 1018, 1021, 1022, 1023D, 1035B, 1038B, 1041, 1052, 1054B, 1073B, 1081B, 1088B, 1091, 1097, 1124B,
1134, 1147, 1148B, 1150A, 1163, 1175, 1233, 1319B.
42
![](asset-2c.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
GO-435 SERIES
ACTIVE SERVICE BULLETINS:
113, 178A, 183A, 212B, 222D, 225B, 235A, 238, 240R, 245D, 246, 247, 297A, 301B, 319B, 343B, 348A, 357, 369I, 388B, 398,
401, 406A, 425C, 439A, 464A, 496, 508, 515, 516, 528, 529A, 533A, 539A.
INACTIVE SERVICE BULLETINS:
124, 125, 130, 139, 144, 145B, 147A, 148D, 149, 151, 154, 155, 156, 157A, 161E, 163, 164, 166, 167C, 168, 170, 173, 175I,
177A, 179A, 180, 182, 184A, 188, 191, 194, 197E, 198, 199, 202C, 205, 207A, 208B, 211, 214A, 218A, 221, 223, 226, 228, 229,
231A, 236, 237A, 242A, 243A, 244, 248, 249A, 250A, 254A, 257, 260, 266, 267, 268F, 277, 286A, 290, 299, 300.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L109, L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L186, L188, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L217, L221B, L222, L223, L226, L227A,
L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L106, L108A, L110, L112A, L116A, L117, L119, L120, L121A, L122, L125, L127, L129, L130, L131C, L134A,
L135A, L136, L145, L149, L151, L153, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1012F, 1014M, 1025, 1029D, 1037L, 1042W, 1043A, 1047B, 1059C, 1060H, 1070L, 1076, 1080A,
1092A, 1094D, 1106D, 1108C, 1112E, 1113A, 1123D, 1125B, 1126, 1130, 1132A, 1135A, 1139, 1142B, 1143B, 1152A, 1154H,
1156A, 1173, 1181, 1191A, 1193A, 1205, 1209B, 1210B, 1236A, 1240C, 1241C, 1243, 1256E, 1267C, 1282, 1284A, 1285B,
1296, 1301A, 1304J, 1311A, 1314, 1327, 1334A, 1336, 1340, 1347, 1356, 1377, 1380, 1382, 1404A, 1409B, 1418, 1420, 1424,
1425A, 1427B, 1433, 1446, 1458B, 1464, 1470, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1015, 1017, 1018, 1019, 1021, 1022, 1023D, 1033, 1038B, 1041, 1054B, 1058, 1074, 1081B, 1088B, 1091, 1096, 1097,
1099, 1114A, 1119, 1125B, 1148B, 1150A, 1153A, 1163, 1175, 1183.
43
![](asset-2d.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
VO & TVO-435 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 212B, 222D, 225B, 235A, 238, 240R, 297A, 301B, 310, 313B, 314C, 330B, 343B, 345, 348A, 357, 361, 366, 369I,
388B, 391A, 398, 401, 439A, 464A, 474, 480D, 483, 495A, 507, 508, 515, 516, 528, 533A.
INACTIVE SEVICE BULLETINS:
125, 147A, 148D, 161E, 167C, 175I, 179A, 187C, 194, 197E, 198, 202C, 205, 207A, 211, 214A, 217, 218A, 220, 223, 226, 227,
228, 229, 230, 236, 237A, 242A, 243A, 244, 250A, 251, 252, 261, 267, 268F, 269, 277, 278, 283A, 286A, 294, 299, 309, 312,
316, 323, 346, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L184A, L185B, L186, L188,
L189, L190, L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L221B, L222, L223, L226,
L227A, L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L018A, L110, L112A, L116A, L117, L119, L120, L121A, L122, L123 L125, L127, L129, L130, L131C, L134A,
L135A, L136, L140F, L143, L144, L145, L151, L152, L153, L155, L164, L169A, L170, L175, L176A, L179C, L187, L191A,
L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1014M, 1025, 1029D, 1037L, 1042W, 1043A, 1044, 1047B, 1059C, 1060H, 1070L, 1076, 1080A,
1092A, 1094D, 1106D, 1112E, 1113A, 1116C, 1118A, 1122A, 1123D, 1125B, 1126, 1130, 1132A, 1135A, 1139, 1144, 1148B,
1154H, 1157, 1161, 1169C, 1171, 1173, 1181, 1191A, 1193A, 1200A, 1203, 1204B, 1205, 1208, 1209B, 1214A, 1223, 1224,
1237A, 1238A, 1239, 1240C, 1241C, 1243, 1253, 1256E, 1259, 1264, 1265A, 1266, 1267C, 1274B, 1276, 1282, 1284A, 1285B,
1287, 1288, 1300, 1301A, 1304J, 1311A, 1314, 1320, 1327, 1334A, 1336, 1347, 1365, 1375, 1377, 1382, 1409B, 1416, 1418,
1424, 1425A, 1430, 1433, 1458B, 1462, 1464, 1470, 1472, 1481, 1483, 1484, 1487, 1492C, 1503.
INACTIVE SERVICE INSTRUCTIONS:
1000, 1009AH, 1013, 1015, 1017, 1019, 1021, 1022, 1023D, 1038B, 1039, 1041, 1046A, 1048A, 1054B, 1055, 1065A, 1067,
1074, 1081B, 1088B, 1089, 1090, 1091, 1096, 1097, 1124B, 1146, 1148B, 1150A, 1153A, 1160, 1163, 1174, 1175, 1183, 1198,
1229.
44
![](asset-2e.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
GO-480 SERIES
ACTIVE SERVICE BULLETINS:
113, 178A, 183A, 212B, 213A, 222D, 225B, 235A, 238, 240R, 245D, 247, 271A, 301B, 319B, 340, 341, 343B, 348A, 357, 367F,
369I, 373, 388B, 398, 401, 425C, 439A, 458, 464A, 496, 508, 515, 516, 527C, 529A, 533A, 539A.
INACTIVE SERVICE BULLETINS:
125, 147A, 148D, 153A, 161E, 167C, 175I, 177A, 179A, 181, 182, 184A, 187C, 188, 189, 191, 194, 197E, 198, 199, 202C, 205,
207A, 208B, 209A, 211, 214A, 215B, 216A, 218A, 221, 223, 226, 227, 228, 229, 230, 231A, 232, 233, 236, 239, 241, 242A,
243A, 244, 248, 249A, 250A, 251, 252, 254A, 255, 257, 260, 267, 268F, 269, 270, 277, 278, 290, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L109, L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L188, L189, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L217, L221B, L222, L223, L226, L227A,
L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L107, L108A, L110, L112A, L116A, L117, L119, L120, L121A, L122, L125, L127, L131C, L134A, L135A,
L136, L145, L149, L151, L153, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1012F, 1014M, 1020B, 1025, 1029D, 1037L, 1042W, 1043A, 1044, 1047B, 1059C, 1060H, 1070L, 1076,
1080A, 1092A, 1094D, 1106D, 1108C, 1112E, 1113A, 1118A, 1123D, 1125B, 1126, 1130, 1132A, 1135A, 1139, 1142B, 1143B,
1152A, 1154H, 1156A, 1169C, 1171, 1173, 1181, 1182A, 1191A, 1193A, 1200A, 1203, 1205, 1208, 1209B, 1210B, 1225D,
1226, 1228A, 1236A, 1237A, 1240C, 1241C, 1243, 1251, 1256E, 1260, 1266, 1267C, 1276, 1282, 1284A, 1285B, 1296, 1301A,
1304J, 1311A, 1314, 1327, 1332, 1334A, 1340, 1347, 1356, 1377, 1380, 1382, 1400, 1404A, 1409B, 1418, 1424, 1425A, 1427B,
1430, 1433, 1458B, 1464, 1470, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1005A, 1009AH, 1013, 1015, 1017, 1018, 1019, 1023D, 1027, 1028A, 1030, 1033, 1038B, 1041, 1054B, 1055, 1058, 1074,
1081B, 1083A, 1096, 1097, 1099, 1114A, 1117, 1119, 1124B, 1150A, 1153A, 1163, 1183.
45
![](asset-2f.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
GSO-480 SERIES
ACTIVE SERVICE BULLETINS:
113, 178A, 183A, 212B, 222D, 225B, 235A, 238, 240R, 245D, 271A, 301B, 319B, 340, 341, 343B, 348A, 357, 369I, 373, 388B,
398, 401, 425C, 439A, 458, 464A, 508, 515, 516, 527C, 533A.
INACTIVE SERVICE BULLETINS:
125, 147A, 148D, 161E, 167C, 175I, 179A, 187C, 194, 197E, 198, 199, 202C, 205, 206B, 207A, 208B, 209A, 210, 211, 214A,
215B, 218A, 223, 224B, 226, 227, 228, 229, 230, 231A, 232, 233, 236, 239, 241, 242A, 243A, 244, 248, 249A, 250A, 251, 252,
254A, 255, 260, 267, 268F, 269, 270, 277, 278, 290, 294, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L109, L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L186, L188, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L217, L221B, L222, L223, L226, L227A,
L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L107, L108A, L110, L112A, L116A, L117, L119, L120, L121A, L122, L125, L127, L131C, L134A, L135A,
L136, L139, L145, L149, L151, L153, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1012F, 1014M, 1020B, 1025, 1029D, 1032H, 1037L, 1042W, 1043A, 1044, 1047B, 1059C, 1060H,
1070L, 1076, 1080A, 1084A, 1092A, 1094D, 1106D, 1108C, 1112E, 1113A, 1118A, 1123D, 1125B, 1126, 1130, 1132A, 1135A,
1139, 1142B, 1143B, 1145, 1152A, 1154H, 1156A, 1169C, 1171, 1173, 1181, 1191A, 1193A, 1200A, 1205, 1208, 1209B,
1210B, 1225D, 1226, 1228A, 1236A, 1240C, 1241C, 1243, 1256E, 1257F, 1260, 1267C, 1274B, 1276, 1282, 1284A, 1285B,
1296, 1301A, 1304J, 1311A, 1314, 1327, 1329A, 1332, 1334A, 1340, 1347, 1351, 1356, 1377, 1380, 1382, 1400, 1404A, 1409B,
1418, 1424, 1425A, 1427B, 1430, 1433, 1458B, 1464, 1470, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1004, 1005A, 1009AH, 1013, 1015, 1017, 1019, 1023D, 1027, 1028A, 1030, 1033, 1038B, 1041, 1054B, 1055, 1058, 1074,
1081B, 1083A, 1096, 1097, 1099, 1101, 1114A, 1117, 1124B, 1150A, 1153A, 1163, 1181, 1201.
46
![](asset-30.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
IGO & IGSO-480 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 212B, 222D, 225B, 235A, 238, 240R, 245D, 271A, 301B, 314C, 319B, 340, 341, 342D, 343B, 348A, 357, 367F,
369I, 373, 382, 388B, 398, 401, 425C, 431, 439A, 442, 444A, 458, 464A, 509, 527C, 529A, 533A.
INACTIVE SERVICE BULLETINS:
125, 148D, 161E, 167C, 175I, 179A, 194, 197E, 198, 202C, 205, 207A, 211, 214A, 218A, 224B, 226, 227, 228, 242A, 243A,
244, 248, 249A, 250A, 254A, 255, 260, 263A, 267, 268F, 269, 270, 277, 278, 290, 294, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L150T, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L188, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L217, L221B, L222, L223, L226, L227A,
L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L107, L108A, L110, L112A, L116A, L117, L119, L120, L121A, L122, L124, L125, L127, L131C, L134A,
L135A, L136, L145, L149, L151, L153, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1012F, 1014M, 1020B, 1025, 1029D, 1032H, 1037L, 1042W, 1043A, 1044, 1047B, 1059C, 1060H,
1062, 1070L, 1076, 1080A, 1084A, 1092A, 1094D, 1106D, 1108C, 1112E, 1113A, 1118A, 1123D, 1125B, 1126, 1130, 1132A,
1135A, 1139, 1142B, 1143B, 1145, 1152A, 1154H, 1156A, 1169C, 1171, 1173, 1181, 1191A, 1193A, 1200A, 1205, 1209B,
1210B, 1225D, 1226, 1228A, 1236A, 1240C, 1241C, 1243, 1256E, 1257F, 1260, 1267C, 1274B, 1275B, 1276, 1282, 1284A,
1285B, 1296, 1301A, 1304J, 1311A, 1329A, 1332, 1334A, 1336, 1340, 1347, 1351, 1356, 1377, 1378, 1380, 1382, 1400, 1404A,
1407, 1409B, 1414A, 1418, 1424, 1425A, 1427B, 1430, 1433, 1458B, 1464, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1004, 1005A, 1009AH, 1013, 1015, 1017, 1019, 1023D, 1027, 1028A, 1030, 1033, 1038B, 1041, 1054B, 1055, 1056, 1058, 1074,
1081B, 1083A, 1085, 1096, 1097, 1099, 1101, 1114A, 1115, 1124B, 1150A, 1153A, 1163, 1183, 1188, 1194, 1195, 1201.
47
![](asset-31.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
O, IO, AEIO, TIO, LTIO-540 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 212B, 222D, 225B, 235A, 238, 240R, 271A, 273A, 276, 297A, 301B, 305B, 311, 330B, 331, 340, 341, 342D,
343B, 347, 348A, 356, 357, 361, 366, 367F, 369I, 370, 372B, 373, 374, 377, 382, 388B, 389, 392B, 398, 399, 400, 401, 403, 404,
406A, 410, 414, 415A, 416A, 417A, 421, 425C, 427A, 428, 430, 433A, 436, 437, 438A, 439A, 440, 441, 442, 444A, 445, 448A,
450, 452A, 458, 459, 460, 461, 463, 464A, 466, 467, 468C, 469, 470, 472, 474, 475B, 477A, 478A, 480D, 482, 483, 484, 486,
487, 489A, 490A, 491A, 492A, 494, 495A, 496, 497, 499C, 500A, 501B, 502, 503, 506, 508, 510, 511, 514, 515, 516, 517, 518C,
519, 520, 521, 523, 524, 525A, 526, 527C, 528, 529A, 531C, 532, 533A, 534, 536, 537, 538A, 539A, 540, 541, 543A, 544, 545A,
547, 548.
INACTIVE SERVICE BULLETINS:
125, 161E, 167C, 175I, 179A, 186C, 194, 197E, 198, 202C, 205, 207A, 208B, 211, 214A, 218A, 226, 228, 236, 237A, 242A,
243A, 244, 248, 250A, 254A, 256A, 262, 264B, 265, 267, 268F, 274, 275A, 277, 278, 279, 280, 281, 285, 286A, 288, 295, 298,
299, 307, 308B, 309, 312, 317A, 320, 321, 322A, 323, 335A, 339A, 355, 360, 381C, 385C, 456F, 512.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L173B, L180A, L181, L182, L183, L184A, L185B,
L186, L188, L189, L190, L192B, L193, L195, L197A, L199, L200, L202B, L203, L206A, L207, L208, L209A, L214A, L216,
L217, L218, L220B, L221B, L222, L223, L226, L227A, L228, L229B, L230, L231, L232, L233, L234, L235A, L237, L239.
INACTIVE SERVICE LETTERS:
L101, L102, L103B, L104B, L105, L108A, L110, L111A, L112A, L113, L115, L116A, L117, L118, L119, L120, L121A, L122,
L127, L128A, L129, L130, L131C, L134A, L135A, L136, L140F, L145, L149, L151, L153, L157B, L160, L164, L169A, L170,
L175, L176A, L178C, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1008B, 1009AQ, 1011H, 1012F, 1014M, 1016C, 1020B, 1029D, 1037L, 1042W, 1043A, 1047B, 1059C, 1060H, 1070L,
1075A, 1076, 1080A, 1092A, 1094D, 1098G, 1106D, 1110C, 1111, 1112E, 1113A, 1121, 1122A, 1123D, 1125B, 1126, 1129B,
1130, 1132A, 1135A, 1136A, 1139, 1140, 1141, 1142B, 1143B, 1148B, 1152A, 1154H, 1157, 1164A, 1166A, 1168B, 1172C,
1173, 1176, 1177B, 1181, 1185, 1186, 1187J, 1190, 1191A, 1193A, 1197A, 1200A, 1204B, 1205, 1206, 1213, 1215, 1218A,
1221A, 1223, 1225D, 1226, 1228A, 1230B, 1237A, 1238A, 1240C, 1241C, 1243, 1244, 1249, 1253, 1254, 1255, 1256E, 1257F,
1260, 1262A, 1265A, 1266, 1267C, 1270A, 1274B, 1275B, 1276, 1277A, 1278, 1279B, 1282, 1283A, 1284A, 1285B, 1286B,
1290E, 1291, 1298, 1299A, 1301A, 1302A, 1304J, 1306A, 1307B, 1308D, 1309, 1310A, 1311A, 1314, 1316A, 1320, 1324A,
1327, 1332, 1334A, 1335, 1336, 1338, 1340, 1341, 1342, 1343A, 1347, 1354B, 1355, 1359, 1365, 1367, 1370, 1373, 1374B,
1375, 1377, 1378, 1379, 1380, 1382, 1384A, 1391, 1396, 1397, 1398A, 1400, 1404A, 1408A, 1409B, 1410, 1413, 1414A, 1416,
1417, 1418, 1420, 1422A, 1423, 1424, 1425A, 1427B, 1430, 1431, 1432A, 1433, 1435, 1437, 1438, 1439, 1442, 1443E, 1446,
1447B, 1448, 1450, 1451A, 1453, 1454, 1457, 1458B, 1461, 1462, 1463, 1464, 1467, 1468A, 1469, 1470, 1471, 1472, 1473,
1474, 1479A, 1481, 1483, 1484, 1485, 1486A, 1487, 1492C, 1494, 1495, 1500.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1010B, 1015, 1017, 1018, 1019, 1021, 1022, 1023D, 1024, 1030, 1031, 1035B, 1038B, 1041, 1049, 1050A, 1051A,
1052, 1054B, 1055, 1057, 1063, 1073B, 1074, 1081B, 1086, 1088B, 1091, 1093B, 1096, 1097, 1099, 1104A, 1107, 1119, 1124B,
1127A, 1134, 1137, 1147, 1148B, 1150A, 1153A, 1160, 1163, 1175, 1178, 1179D, 1184C, 1199, 1202, 1207, 1233, 1272, 1303,
1319B.
48
![](asset-32.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
IGO-540 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 212B, 222D, 225B, 238, 240R, 245D, 271A, 301B, 319B, 326A, 340, 341, 342D, 343B, 348A, 351B, 357, 367F,
369I, 373, 382, 388B, 398, 401, 425C, 439A, 442, 444A, 458, 527C, 529A, 533A.
INACTIVE SERVICE BULLETINS:
125, 179A, 194, 197E, 198, 202C, 205, 207A, 211, 214A, 218A, 226, 228, 243A, 244, 249A, 250A, 260, 267, 268F, 270, 277,
278, 279, 288, 290, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L188, L189, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L217, L221B, L222, L223, L226, L227A,
L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L108A, L110, L112A, L116A, L117, L119, L120, L121A, L122, L127, L131C, L134A, L135A, L136, L138,
L145, L149, L151, L153, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1012F, 1014M, 1025, 1029D, 1037L, 1042W, 1043A, 1044, 1047B, 1059C, 1060H, 1070L, 1075A,
1076, 1080A, 1092A, 1094D, 1106D, 1108C, 1112E, 1113A, 1118A, 1123D, 1125B, 1126, 1130, 1132A, 1135A, 1139, 1142B,
1143B, 1152A, 1154H, 1156A, 1158, 1169C, 1173, 1181, 1191A, 1193A, 1203, 1205, 1209B, 1210B, 1215, 1226, 1227, 1228A,
1236A, 1240C, 1241C, 1243, 1256E, 1260, 1266, 1268C, 1274B, 1275B, 1276, 1280C, 1282, 1284A, 1285B, 1296, 1301A,
1304J, 1311A, 1323A, 1327, 1332, 1334A, 1340, 1342, 1347, 1356, 1365, 1375, 1377, 1378, 1380, 1382, 1394, 1400, 1404A,
1409B, 1414A, 1418, 1423, 1424, 1425A, 1427B, 1430, 1433, 1458B, 1464, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1015, 1017, 1019, 1023D, 1024, 1030, 1033, 1038B, 1041, 1045, 1054B, 1055, 1056, 1058, 1064, 1071, 1074, 1081B,
1086, 1096, 1097, 1099, 1101, 1102, 1114A, 1124B, 1150A, 1153A, 1163, 1184C, 1195.
49
![](asset-33.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
IGSO-540 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 212B, 222D, 238, 240R, 245D, 271A, 301B, 319B, 326A, 327C, 333, 340, 341, 343B, 351B, 357, 367F, 369I, 373,
388B, 398, 401, 425C, 431, 439A, 444A, 458, 501B, 509, 515, 517, 527C, 528, 533A.
INACTIVE SERVICE BULLETINS:
125, 179A, 194, 197E, 198, 202C, 205, 207A, 211, 214A, 218A, 226, 228, 243A, 244, 248, 249A, 250A, 260, 267, 268F, 270,
277, 278, 282A, 284, 287, 290, 294, 312, 315A, 322A, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L150T, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L188, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L209A, L214A, L216, L217, L221B, L222, L223, L226, L227A, L228,
L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L108A, L110, L112A, L117, L119, L120, L121A, L122, L127, L131C, L134A, L135A, L136, L137, L139, L145,
L146, L149, L151, L153, L164, L169A, L170, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1012F, 1014M, 1025, 1026, 1029D, 1032H, 1037L, 1042W, 1043A, 1044, 1047B, 1059C, 1060H,
1069A, 1070L, 1075A, 1076, 1079B, 1080A, 1092A, 1094D, 1106D, 1108C, 1109, 1112E, 1113A, 1118A, 1123D, 1125B, 1126,
1130, 1132A, 1135A, 1139, 1142B, 1143B, 1152A, 1154H, 1156A, 1158, 1159, 1169C, 1173, 1181, 1191A, 1193A, 1196, 1205,
1209B, 1210B, 1215, 1226, 1227, 1228A, 1236A, 1240C, 1241C, 1243, 1256E, 1257F, 1260, 1262A, 1267C, 1268C, 1274B,
1275B, 1276, 1280C, 1282, 1284A, 1285B, 1295, 1296, 1301A, 1302A, 1304J, 1307B, 1311A, 1323A, 1327, 1329A, 1332,
1334A, 1340, 1342, 1347, 1351, 1356, 1365, 1375, 1377, 1378, 1380, 1382, 1394, 1400, 1404A, 1407, 1409B, 1414A, 1418,
1424, 1425A, 1427B, 1433, 1454, 1458B, 1464, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1015, 1017, 1019, 1023D, 1024, 1030, 1033, 1038B, 1041, 1045, 1054B, 1055, 1056, 1058, 1064, 1066, 1071, 1081B,
1082, 1083A, 1085, 1087A, 1097, 1099, 1100, 1101, 1102, 1103, 1114A, 1115, 1124B, 1150A, 1163, 1184C, 1188, 1194, 1195,
1222.
50
![](asset-34.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
VO-540 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 212B, 222D, 225B, 235A, 238, 240R, 245D, 271A, 301B, 310, 314C, 330B, 343B, 348A, 357, 366, 367F, 369I,
371B, 388B, 398, 401, 425C, 439A, 464A, 480D, 483, 495A, 501B, 508, 515, 516, 527C, 533A.
INACTIVE SERVICE BULLETINS:
125, 148D, 161E, 167C, 175I, 179A, 194, 197E, 198, 202C, 205, 207A, 211, 214A, 218A, 226, 227, 228, 236, 242A, 243A, 244,
250A, 261, 267, 268F, 269, 277, 278, 283A, 291A, 292B, 296A, 303F, 309, 312, 323, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L109, L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L186, L188, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L217, L220B, L221B, L222, L223, L226,
L227A, L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L108A, L110, L112A, L116A, L117, L119, L120, L121A, L122, L123, L127, L129, L130, L131C, L133, L134A,
L135A, L136, L144, L145, L148A, L149, L151, L153, L155, L164, L169A, L170, L176A, L179C, L187, L191A, L201C,
L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1012F, 1014M, 1020B, 1025, 1029D, 1037L, 1042W, 1043A, 1044, 1047B, 1059C, 1060H, 1070L, 1076,
1080A, 1092A, 1094D, 1106D, 1112E, 1113A, 1116C, 1118A, 1123D, 1125B, 1126, 1130, 1132A, 1135A, 1139, 1142B, 1144,
1148B, 1152A, 1154H, 1167, 1169C, 1171, 1173, 1181, 1191A, 1193A, 1203, 1205, 1206, 1209B, 1225D, 1228A, 1240C,
1241C, 1243, 1256E, 1264, 1265A, 1267C, 1274B, 1280C, 1282, 1284A, 1285B, 1301A, 1304J, 1307B, 1311A, 1314, 1327,
1334A, 1340, 1347, 1351, 1365, 1375, 1377, 1382, 1404A, 1409B, 1418, 1420, 1424, 1425A, 1430, 1433, 1446, 1458B, 1462,
1464, 1470, 1472, 1481, 1483, 1484, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1013, 1015, 1017, 1019, 1022, 1023D, 1028A, 1030, 1036, 1038B, 1039, 1041, 1054B, 1055, 1067, 1074, 1077, 1081B,
1083A, 1088B, 1091, 1095, 1096, 1097, 1099, 1124B, 1148B, 1150A, 1153A, 1163, 1175, 1184C.
51
![](asset-35.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
IVO, TVO, TIVO-540 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 212B, 222D, 225B, 235A, 238, 240R, 271A, 301B, 314C, 342D, 343B, 348A, 357, 361, 369I, 371B, 382, 388B, 398,
401, 425C, 439A, 442, 474, 480D, 527C, 529A, 533A.
INACTIVE SERVICE BULLETINS:
125, 179A, 194, 197E, 198, 202C, 205, 207A, 211, 214A, 218A, 226, 228, 243A, 244, 250A, 267, 268F, 277, 278, 303F, 322A,
360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L184A, L185B, (TVO) L186,
L188, L190, L192B, L193, L195, L197A, L199, L200, L203, L206A, L207, L209A, L214A, L216, L220B, L221B, L222, L223,
L226, L227A, L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L108A, L110, L112A, L116A, L117, L119, L120, L121A, L122, L127, L131C, L134A, L135A, L136, L140F,
L145, L149, L151, L153, L164, L168, L169A, L170, L175, L176A, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1014M, 1020B, 1029D, 1037L, 1042W, 1043A, 1044, 1047B, 1059C, 1060H, 1070L, 1076, 1080A,
1092A, 1094D, 1106D, 1112E, 1113A, 1116C, 1122A, 1123D, 1125B, 1126, 1130, 1132A, 1135A, 1139, 1144, 1154H, 1169C,
1173, 1181, 1191A, 1193A, 1200A, 1203, 1204B, 1205, 1209B, 1223, 1225D, 1228A, 1238A, 1240C, 1241C, 1243, 1256E,
1267C, 1274B, 1275B, 1280C, 1282, 1284A, 1285B, 1301A, 1304J, 1307B, 1311A, 1320, 1327, 1334A, 1340, 1347, 1351, 1377,
1378, 1382, 1404A, 1409B, 1414A, 1418, 1424, 1425A, 1433, 1458B, 1462, 1464, 1472, 1481, 1483, 1484, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1015, 1017, 1019, 1023D, 1038B, 1041, 1046A, 1054B, 1055, 1065A, 1074, 1077, 1081B, 1083A, 1089, 1096, 1097,
1124B, 1146, 1150A, 1153A, 1163, 1184C, 1199.
52
![](asset-36.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
TIO-541 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 212B, 222D, 225B, 238, 240R, 301B, 318B, 329A, 334C, 337A, 340, 341, 343B, 344, 348A, 353A, 357, 361,
362A, 367F, 369I, 373, 375A, 379, 383, 384, 387, 388B, 394, 397, 398, 400, 401, 425C, 430, 439A, 442, 445, 458, 466, 467,
471A, 472, 474, 479, 480D, 502, 515, 517, 518C, 527C, 528, 532, 533A, 543A.
INACTIVE SERVICE BULLETINS:
125, 179A, 194, 197E, 202C, 205, 207A, 211, 214A, 218A, 226, 228, 243A, 244, 250A, 268F, 277, 312, 322A, 324, 325, 338,
358, 360, 476.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L183, L184A, L185B, L188,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L209A, L214A, L216, L217, L220B, L221B, L222, L223, L226,
L227A, L229B, L230, L231, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L108A, L110, L112A, L117, L119, L120, L121A, L122, L127, L131C, L134A, L135A, L136, L140F, L145,
L149, L151, L153, L160, L164, L169A, L170, L174, L175, L176A, L178C, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1008B, 1009AQ, 1011H, 1012F, 1014M, 1029D, 1037L, 1042W, 1043A, 1047B, 1059C, 1060H, 1070L, 1076, 1080A,
1092A, 1094D, 1098G, 1106D, 1111, 1112E, 1113A, 1121, 1122A, 1123D, 1125B, 1126, 1129B, 1130, 1132A, 1135A, 1139,
1141, 1142B, 1143B, 1152A, 1154H, 1157, 1172C, 1173, 1177B, 1181, 1191A, 1192, 1193A, 1197A, 1200A, 1204B, 1205,
1211D, 1221A, 1223, 1225D, 1226, 1231, 1234, 1238A, 1240C, 1241C, 1243, 1247, 1248B, 1255, 1256E, 1257F, 1260, 1262A,
1267C, 1273A, 1274B, 1275B, 1276, 1278, 1282, 1284A, 1285B, 1290E, 1293, 1297, 1301A, 1302A, 1304J, 1307B, 1311A,
1313A, 1315A, 1316A, 1320, 1324A, 1327, 1328, 1331A, 1332, 1334A, 1339A, 1340, 1352A, 1354B, 1365, 1375, 1377, 1378,
1380, 1382, 1400, 1403, 1404A, 1409B, 1414A, 1416, 1418, 1422A, 1425A, 1427B, 1433, 1435, 1437, 1447B, 1453, 1458B,
1464, 1469, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1015, 1017, 1019, 1023D, 1038B, 1041, 1050A, 1054B, 1073B, 1081B, 1088B, 1089, 1097, 1099, 1124B, 1134,
1150A, 1163, 1184C, 1233, 1235, 1319B.
53
![](asset-37.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
TIGO-541 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 212B, 222D, 225B, 238, 240R, 245D, 301B, 318B, 337A, 340, 341, 343B, 344, 348A, 354, 357, 361, 362A, 367F,
369I, 373, 375A, 384, 386, 387, 388B, 390A, 393C, 394, 395, 397, 398, 400, 401, 425C, 430, 439A, 442, 445, 458, 467, 471A,
472, 474, 480D, 496, 497, 500A, 502, 515, 517, 518C, 527C, 528, 529A, 532, 533A, 539A, 541, 543A.
INACTIVE SERVICE BULLETINS:
125, 179A, 194, 197E, 202C, 205, 207A, 211, 214A, 218A, 226, 228, 243A, 244, 250A, 260, 268F, 277, 322A, 332B, 350, 360,
368, 378.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L183, L184A, L185B, L188,
L189, L192B, L193, L195, L197A, L199, L200, L203, L206A, L209A, L214A, L216, L217, L221B, L222, L223, L226, L227A,
L229B, L230, L231, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L108A, L110, L112A, L117, L119, L120, L121A, L122, L127, L131C, L134A, L135A, L136, L140F, L145,
L149, L151, L153, L164, L169A, L170, L175, L176A, L178C, L179C, L187, L191A, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1009AQ, 1011H, 1012F, 1014M, 1029D, 1037L, 1042W, 1043A, 1047B, 1059C, 1060H, 1070L, 1076, 1080A, 1092A,
1094D, 1106D, 1112E, 1122A, 1123D, 1125B, 1126, 1130, 1132A, 1135A, 1139, 1142B, 1143B, 1152A, 1154H, 1172C, 1173,
1181, 1191A, 1193A, 1200A, 1204B, 1205, 1211D, 1223, 1225D, 1226, 1231, 1232, 1234, 1237A, 1238A, 1240C, 1241C,
1242A, 1243, 1248B, 1250, 1255, 1256E, 1257F, 1260, 1262A, 1266, 1267C, 1273A, 1274B, 1275B, 1276, 1282, 1284A, 1285B,
1290E, 1292A, 1297, 1301A, 1302A, 1304J, 1307B, 1311A, 1312, 1313A, 1315A, 1316A, 1320, 1321, 1323A, 1326, 1327,
1330A, 1331A, 1332, 1334A, 1337A, 1339A, 1340, 1344, 1365, 1375, 1377, 1378, 1380, 1382, 1400, 1404A, 1409B, 1414A,
1416, 1418, 1420, 1422A, 1423, 1425A, 1427B, 1433, 1446, 1453, 1458B, 1464, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SEVICE INSTRUCTIONS:
1009AH, 1015, 1017, 1019, 1023D, 1033, 1038B, 1041, 1054B, 1058, 1081B, 1089, 1097, 1099, 1124B, 1150A, 1163, 1184C,
1235, 1261, 1319B.
54
![](asset-38.png)
LIST OF SERVICE BULLETINS, LETTERS AND INSTRUCTIONS
APPLICABLE TO EACH ENGINE SERIES
IO-720 SERIES
ACTIVE SERVICE BULLETINS:
113, 183A, 201E, 212B, 222D, 225B, 238, 240R, 271A, 301B, 340, 341, 342D, 343B, 348A, 357, 367F, 369I, 370, 373, 382,
388B, 398, 401, 406A, 410, 415A, 425C, 427A, 428, 433A, 437, 438A, 439A, 442, 445, 458, 461, 464A, 466, 472, 475B, 480D,
486, 496, 510, 515, 517, 518C, 520, 527C, 528, 529A, 532, 533A, 539A, 541, 543A.
INACTIVE SERVICE BULLETINS:
125, 179A, 194, 197E, 198, 202C, 205, 207A, 211, 214A, 218A, 226, 243A, 244, 250A, 267, 268F, 277, 322A, 355, 360.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE LETTERS:
L114AK, L142B, L147B, L154B, L159D, L161C, L162B, L171, L172B, L180A, L181, L182, L185B, L188, L189, L190,
L192B, L193, L195, L197A, L199, L200, L203, L206A, L209A, L214A, L216, L217, L220B, L221B, L222, L223, L226,
L227A, L229B, L230, L232, L234, L237, L239.
INACTIVE SERVICE LETTERS:
L102, L103B, L108A, L110, L112A, L117, L119, L120, L121A, L127, L131C, L134A, L135A, L136, L145, L149, L151, L153,
L157B, L160, L164, L165, L166, L167, L169A, L170, L176A, L187, L201C, L205A.
- - - - - - - - - - - - - - - - - - - - - - - - -
ACTIVE SERVICE INSTRUCTIONS:
1002, 1008B, 1009AQ, 1011H, 1012F, 1014M, 1029D, 1037L, 1042W, 1043A, 1047B, 1059C, 1060H, 1070L, 1076, 1080A,
1092A, 1094D, 1098G, 1106D, 1111, 1112E, 1113A, 1120, 1121, 1123D, 1125B, 1126, 1129B, 1130, 1132A, 1133, 1135A,
1138B, 1139, 1141, 1142B, 1143B, 1152A, 1154H, 1157, 1164A, 1170, 1172C, 1173, 1177B, 1181, 1191A, 1193A, 1197A,
1200A, 1204B, 1205, 1215, 1221A, 1225D, 1226, 1228A, 1237A, 1240C, 1241C, 1243, 1252C, 1255, 1256E, 1260, 1266,
1267C, 1268C, 1270A, 1274B, 1275B, 1276, 1278, 1280C, 1282, 1283A, 1284A, 1285B, 1290E, 1298, 1301A, 1304J, 1307B,
1308D, 1310A, 1311A, 1316A, 1324A, 1327, 1332, 1334A, 1336, 1340, 1342, 1343A, 1347, 1354B, 1355, 1365, 1367, 1375,
1377, 1378, 1380, 1382, 1400, 1404A, 1409B, 1414A, 1417, 1418, 1420, 1423, 1424, 1425A, 1427B, 1430, 1433, 1434, 1435,
1437, 1444, 1446, 1453, 1457, 1458B, 1464, 1469, 1472, 1481, 1483, 1484, 1485, 1487, 1492C.
INACTIVE SERVICE INSTRUCTIONS:
1009AH, 1015, 1017, 1023D, 1038B, 1041, 1050A, 1054B, 1073B, 1081B, 1088B, 1097, 1099, 1124B, 1128, 1134, 1150A,
1163, 1165A, 1179D, 1184C, 1233, 1303, 1319B.
55
LIST OF SUPERSEDURES
Service Bulletin No. 148 superseded by Service Instruction No. 1025
Service Bulletin No. 161 superseded by Service Instruction No. 1009
Service Bulletin No. 167 superseded by Service Instruction No. 1037
Service Bulletin No. 175 superseded by Service Instruction No. 1092
Service Bulletin No. 187 superseded by Service Instruction No. 1169
Service Bulletin No. 195 superseded by Service Instruction No. 1098
Service Bulletin No. 197 superseded by Service Instruction No. 1014
Service Bulletin No. 199 superseded by Service Instruction No. 1241
Service Bulletin No. 207 superseded by Service Instruction No. 1059
Service Bulletin No. 208 superseded by Service Instruction No. 1012
Service Bulletin No. 209 superseded by Service Instruction No. 1029
Service Bulletin No. 211 superseded by Service Bulletin No. 212C
Service Bulletin No. 218 superseded by Service Instruction No. 1080
Service Bulletin No. 219 superseded by Service Bulletin No. 253
Service Bulletin No. 224 superseded by Service Instruction No. 1032
Service Bulletin No. 231 superseded by Service Instruction No. 1156
Service Bulletin No. 242 superseded by Service Instruction No. 1124
Service Bulletin No. 243 superseded by Service Instruction No. 1060
Service Bulletin No. 248 superseded by Service Instruction No. 1142
Service Bulletin No. 251 superseded by Service Instruction No. 1208
Service Bulletin No. 261 superseded by Service Instruction No. 1180
Service Bulletin No. 267 superseded by Service Instruction No. 1011
Service Bulletin No. 269 superseded by Service Instruction No. 1171
Service Bulletin No. 270 superseded by Service Instruction No. 1135
Service Bulletin No. 279 superseded by Service Instruction No. 1275
Service Bulletin No. 282 superseded by Service Instruction No. 1109
Service Bulletin No. 335 superseded by Service Bulletin No. 342
Service Bulletin No. 346 superseded by Service Bulletin No. 391
Service Bulletin No. 368 superseded by Service Bulletin No. 393
Service Bulletin No. 378 superseded by Service Bulletin No. 393
Service Bulletin No. 381 superseded by Service Bulletin No. 524
Service Bulletin No. 385 superseded by Service Bulletin No. 524
Service Bulletin No. 396 superseded by Service Instruction No. 1350
Service Bulletin No. 413 superseded by Service Bulletin No. 424
Service Bulletin No. 454 superseded by Service Bulletin No. 524
Service Bulletin No. 455 superseded by Service Bulletin No. 524
Service Bulletin No. 456 superseded by Service Bulletin No. 524
Service Bulletin No. 476 superseded by Service Bulletin No. 479
Service Bulletin No. 512 superseded by Service Bulletin No. 521
Service Letter 11-18-57 superseded by Service Instruction No. 1193
Service Letter No. L103 superseded by Service Instruction No. 1070
Service Letter No. L129 superseded by Service Instruction No. 1148
Service Letter No. L131 superseded by Service Letter No. L114
Service Letter No. L135 superseded by Service Instruction No. 1181
Service Letter No. L157 superseded by Service Instruction No. 1319
Service Letter No. L163 superseded by Service Bulletin No. 533
Service Letter No. L164 superseded by Service Instruction No. 1304
Service Letter No. L169 superseded by Service Instruction No. 1070
Service Letter No. L178 superseded by Service Instruction No. 1319
Service Letter No. L179 superseded by Current Warranty Policy
Service Letter No. L191 superseded by Current Warranty Policy
Service Letter No. L194 superseded by Current Warranty Policy
Service Letter No. L201 superseded by Service Instruction No. 1009
Service Letter No. L205 superseded by Current Warranty Policy
Service Instruction No. 1013 superseded by Service Instruction No. 1169
Service Instruction No. 1023 superseded by Service Bulletin No. 369
Service Instruction No. 1031 superseded by Service Instruction No. 1037
56
LIST OF SUPERSEDURES (CONT.)
Service Instruction No. 1052 superseded by Service Instruction No. 1154
Service Instruction No. 1054 superseded by Service Letter No. L159
Service Instruction No. 1081 superseded by Service Bulletin No. 439
Service Instruction No. 1088 superseded by Service Bulletin No. 388
Service Instruction No. 1097 superseded by Service Instruction No. 1029
Service Instruction No. 1104 superseded by Service bulletin No. 311
Service Instruction No. 1114 superseded by Service Instruction No. 1236
Service Instruction No. 1124 superseded by Service Instruction No. 1427B
Service Instruction No. 1127 superseded by Service Bulletin No. 305
Service Instruction No. 1179 superseded by Service Bulletin No. 475
Service Instruction No. 1184 superseded by Service Bulletin No. 439
Service Instruction No. 1201 superseded by Service Instruction No. 1084
Service Instruction No. 1229 superseded by Service Bulletin No. 391
Service Instruction No. 1233 superseded by Service Instruction No. 1324
Service Instruction No. 1235 superseded by Service Bulletin No. 337
Service Instruction No. 1269 superseded by Service Bulletin No. 376
Service Instruction No. 1272 superseded by Service Bulletin No. 381
Service Instruction No. 1281 superseded by Service Bulletin No. 376
Service Instruction No. 1303 superseded by Service Instruction No. 1324
Service Instruction No. 1319 superseded by SSP-885
Service Instruction No. 1350 superseded by PC-206, Rev. 4
Service Instruction No. 1358 superseded by Service Bulletin No. 420
57
LIST OF INACTIVE TEXTRON LYCOMING SERVICE BULLETINS,
LETTERS AND INSTRUCTIONS
INACTIVE SERVICE BULLETINS:
No. 1 thru 112, 114 thru 177, 179 thru 182, also:
184 – Modification of Reduction Gear Housing and Associated Parts
185 – Modification of Model MA-4SPA Carburetors
186 – Approved Generator and Voltage Regulator Combinations (See S.I. No. 1154)
187 – Proper Method of Installing Capsule Type Oil Filter (See S.I. No. 1169)
188 – Revision of Operator’s Manual
189 – Modification of PS-5BD Carburetors (Bendix P/N 391621-1, Lycoming P/N 69926)
190 – Installation of Thermostatic Oil Cooler Bypass Valve (See S.I. No. 1008)
191 – Inspection of Magneto Impulse Coupling
192 – Installation of Vacuum Pump and Hydraulic Pump Dual Drive Kit
193 – Installation of Vacuum Pump and Propeller Governor Dual Drive Kit
194 – Oil Impregnation of Rocker Assembly Bushings
195 – Crankshaft ModificationS
196 – Conversion from 60883 Engine Mounting Bushings to Lord Bushings
197 – Lubricating Oil Recommendations (See S.I. No. 1014)
198 – Inspection of Hydraulic Bodies (See S.I. No. 1011)
199 – Pre-Oiling Dry Sump Engines Prior to Initial Start (See S.I. No. 1241)
200 – Alternate Piston and Ring Assemblies (See S.I. No. 1037)
202 – Valve Seat Reconditioning
203 – Replacement of Standard Exhaust Valves with Sodium Cooled Exhaust Valves
204 – Correct Assembly of the Tachometer Shaft Centering Spacer
205 – Correct Method of Installing Cylinder Baffle
206 – Revision of Oil Pressure Limits
207 – Pre-Lubrication of Camshaft Assembly and Crankshaft Bearings (See S.I. No. 1059)
208 – Location on Crankshaft of Counterweights and Rollers (See S.I. No. 1012)
209 – Tightening Cylinder Base Nuts to Correct Torque (See S.I. No. 1029)
210 – Method of Correcting Fuel Dye Stains at Stud Locations in Supercharger Housing
211 – Method of Cylinder Base Stud Removal and Replacement
214 – Special Tools for Lycoming Aircraft Engines (See Textron Lycoming Reciprocating Tool Catalog)
215 – Thermal Shocking Combustion Chambers
216 – Installation of Dowels in Reduction Gear Housing
217 – Procedure for Modification of Marvel-Schebler MA-4-5 Carburetors
218 – Maintenance Items for Special Attention (See S.I. No. 1080)
219 – 100 Hour Inspection of Propeller Mounting Bolts (See S.B. No. 253)
220 – Modification of 69874 Hand Crank Jaw
221 – Replacement of Heavyweight Mags (S6LN-50, -51) with Lightweight Mags (S6LN-20, -21)
223 – Clearance Between Valve Rocker and Cylinder Head (See S.B. No. 348)
224 – Assembly of Dynamically Balanced Supercharger Parts (See S.I. No. 1032)
225 – Revision of Table of Limits (See Current Table of Limits and Torque Value Recommendations)
226 – Aircraft Engine Fuels and Their Use in Lycoming Aircraft Engines (See S.I. No. 1070)
227 – Replacement of Ball Check Valve Retainer
228 – Scintilla Division Service Bulletin No. 395
229 – Discontinuance of Use of Exhaust Flange Gasket
230 – Modification of Oil Pressure and Scavenge Pump Gear
231 – Revision of Table of Limits, Reference 673 (See S.I. No. 1156)
232 – Piston Modification
233 – Modification of Oil Ring Groove in Piston
234 – Crankcase and Crankshaft End Clearance
236 – Scintilla Magneto Ground Terminal Spring Modification
237 – Marvel-Schebler Model MA-4-5 and MA-4-5A Carburetor Modification
239 – Modification of Right Crankcase Half and Accessory Housing
241 – Inspection of Connecting Rods
242 – Oil Consumption Test Limits (See S.I. No. 1124)
243 – Identification of the Various Length Push Rods Used on Lycoming Engines (See S.I. No. 1060)
244 – Replacement of Connecting Rod Bushings
58
LIST OF INACTIVE TEXTRON LYCOMING SERVICE BULLETINS,
LETTERS AND INSTRUCTIONS
INACTIVE SERVICE BULLETINS (CONT.):
248 – Crankshaft Counterweight Bushings (See S.I. No. 1142)
249 – Replacement of Cast Counterweights with Forged Counterweights
250 – Replacement of Cotter Keys with Roll Pins in Connecting Rod Bolts
251 – Installation of Magneto Shaft Bore Bushings (See S.I. No. 1208)
252 – Conversion to Large Capacity Oil Filter
254 – Modification of Cylinder Baffle Clamps
255 – Cylinder Head Fin Stabilizers
256 – Replacement of Exhaust Valve Seats
257 – Modification of Reduction Gear Assembly to Incorporate Body Fit Bolts
259 – Modification of Engine Oil Breather System
260 – Installation of Governor Drive Idler Shaft Bushings
261 – Replacement of Oil Jet Plug and Front Oil Plug in VO-435 and VO-540 (See S.I. No. 1180)
262 – Inspection of Oil Cooler Bypass Temperature Control Valve Assembly
263 – Cleaning Procedure for Fuel Injector Oil Filter
264 – AC Old Type Heavyweight Fuel Pump – Proper Torque (See Current Table of Limits and Torque Value
Recommendations)
265 – Modification of Intercylinder Baffles
266 – Replacement of Rocker Box Covers
267 – Inspection of Hydraulic Tappet Bodies, Camshaft Lobes and Hydraulic Plunger Assembly (See S.I. No. 1011)
268 – Table of Limits
269 – Salvage of Accessory Housings and Covers Eroded at Magneto Pilots (See S.I. No. 1171)
270 – Inspection of Cylinder Head Assemblies (See S.I. No. 1135)
274 – Increase of Sodium Cooled Exhaust Valve Stem Clearance
275 – Insertion of Engine Oil Dip Stick in Aero Commander Model 500
277 – Lubrication of Felt Washer in S4 and S6 Magnetos
278 – Scintilla S.B. No. 466 – Replacement of Magneto Capacitor
279 – Procedure for Cleaning Fuel Injection Nozzles
280 – Modification of Injection Lines
281 – Modification or Replacement of Oil Dip Stick
282 – Factory Recommended Procedures for Cleaning Fuel and Oil Filters (See S.I. No. 1109)
283 – Modification to Improve Engine Breathing and Reduce Operating Oil Temperature
284 – Crankcase Inspection
285 – Replacement of AC SR-87 Spark Plugs (See S.I. No. 1042)
286 – “Long Lok” Modification to Marvel-Schebler Carburetors
287 – Modification of Simmonds #580 Fuel Injector in all Aero Commander 680F
288 – Maintenance Recommendations for Servo Bleed Screen in Bendix RS10 Fuel Injection Systems
289 – Sticking Exhaust Valves
290 – Propeller Leakdown Inspection
291 – Instructions for Replacement of Starter Drive Adapter
292 – Instructions for Installation of Spring Coupling Accessory Drive
294 – Replacement of Intake Hose Clamps; Installation of New and Additional Primer Line Clamps
295 – Inspection and Replacement of Oil Pump Drive Shaft
296 – Connecting Rod Bolt Replacement and Rod Inspection to Preclude Failure
298 – Fuel and Oil Vent Restriction Requirement for AC Lightweight Diaphragm Fuel Pumps
299 – Safety Wire Requirements for Marvel-Schebler Carburetors
303 – Heavy Connecting Rods for High Speed Helicopter Engines (See S.B. No. 351)
304 – Replacement of Thermostatic Oil Cooler Bypass Valves (See S.I. No. 1255)
306 – Bendix Aircraft Carburetor Bulletin No. 893, Rev. 1
307 – Replacement of AC Oil Filter Adapter Gasket
308 – Replacement of Crankshaft Idler Gear Shafts
309 – Modification Effectivity for Marvel-Schebler Carburetors
312 – Scintilla Division Service Bulletin No. 515
315 – Limited Travel Valve Lifter Replacement
316 – Replacement of Piston Pins and Plugs
317 – Replacement of Differential Pressure Controller
320 – Fuel Injection Line – Adding Support Clamps
59
LIST OF INACTIVE TEXTRON LYCOMING SERVICE BULLETINS,
LETTERS AND INSTRUCTIONS
INACTIVE SERVICE BULLETINS (CONT.):
321 – Fuel Line Heat Shield Installation
322 – Bendix Energy Controls Division Bulletin No. RS-29
323 – Drain Plug Inspection for Excessive Lubrication, Marvel-Schebler Bulletin No. A1-69
324 – Compressor Wheel Replacement, AiResearch Instruction No. 969-2
325 – Controller Linkage Rod End Replacement
328 – Limited Travel Valve Lifter Replacement
332 – Replacement of V-Band Exhaust Manifold Couplings
335 – Fuel Line Inspection and Support Clamp Installation (See S.B. No. 342)
336 – Periodic Inspection and Lubrication of Magneto Distributor Bushing
338 – Model T1879 Turbocharger Modification
339 – Turbocharger Exhaust Systems Inspection and Modification
346 – Model TA1108 Turbocharger, AiResearch Instruction No. 1271-1 (See S.B. No. 391)
350 – Replacement of Torquemeter Oil Pump
355 – Alternator Fan Replacement, Prestolite Bulletin No. ASM-8
358 – AiResearch Industrial Division Bulletin No. 872-5
360 – Connecting Rod Bolt Length Gage
368 – Exhaust Manifold Clamp Inspection
378 – Exhaust Slip Joint Modification
381 – Oil Pump Woodruff Key Drive and Impeller Replacement (See S.B. No. 524)
385 – Oil Pump Impeller and Drive Replacement (See S.B. No. 524)
396 – Parts Catalog PC-106 Listing for Camshaft (Wide Cylinder Flange) (See S.I. No. 1350)
413 – Hydraulic Tappet Face Inspection (See S.B. No. 424)
454 – Replacement of Oil Pump Impellers (See S.B. No. 524)
455 – Replacement of Oil Pump Impellers (See S.B. No. 524)
456 – Replacement of Sintered Iron Oil Pump Impellers (See S.B. No. 524)
462 – NOT USED
476 – Exhaust Slip Joint Modification
493 – NOT USED
512 – Inspection of Marmon Flange Joint at Transition Inlet (See S.B. No. 521)
513 – NOT USED
INACTIVE SERVICE LETTERS:
All Letters up to L101 are considered obsolete.
L101 – Recommending Lubricant for Starters, Delco-Remy Bulletin No. DR-7719
L102 – Rapid Leak-Down Hydraulic Tappet Plunger Assemblies
L103 – Aviation Fuels for Lycoming Engines (See S.I. No. 1070)
L104 – Delco-Remy Bulletin No. DR-1023
L105 – Oil Level Gage Extension
L106 – Leece-Neville E-7A Generator Installed in GO-435-C2 Aircraft Engines
L107 – Installation of Accessory Housing Breather Assembly
L108 – Replacement of Piston Pin Plugs
L110 – Replacement of Generator Brushes
L111 – Recommended Starting Procedure
L112 – Manual Mixture Control Leaning Procedure for Normally Aspirated Engines
L113 – Propeller Flange Bushings (See S.I. No. 1098)
L115 – Delco-Remy Bulletin No. DR-7730
L116 – Scintilla Bulletin No. 434A
L117 – Installation of Cylinder Head Temperature Gage Thermocouples
L118 – Connecting Rods for Service Use
L119 – Valve Seat Replacement
L120 – Power Charts
L121 – Corrosion Prevention in New Engines (See S.L. No. L180)
L122 – Approval of Tungsten Breaker Assemblies
L123 – Improved Engine Starting by Installation of Dual Breaker Magneto and Vibrator Coils
60
LIST OF INACTIVE TEXTRON LYCOMING SERVICE BULLETINS,
LETTERS AND INSTRUCTIONS
INACTIVE SERVICE LETTERS (CONT.):
L124 – Replacement of Solenoid Valve Assemblies
L125 – Replacement of Intake Valves at Overhaul
L126 – Conversion to Low Compression Engine (See S.I. No. 1070)
L127 – Clarification of Overhaul Extension Periods (See S.L. No. L201A)
L128 – Higher Ratio Starter
L129 – Proper Use of Carburetor Heat Control (See S.I. No. 1148)
L130 – Marvel-Schebler Bulletin No. 5-60
L131 – Subscription Policy for Service Publications (See S.L. No. L114)
L133 – Modification to Increase Overall Performance – VO-540 Aircraft Engines
L134 – Current Production Engines Incorporating Retard Breaker Magnetos
L135 – Color Code on Cylinders for Lycoming Engines
L136 – Identification of Valve Springs
L137 – Conduit Type Ignition Harness
L138 – Overhaul and Maintenance Instructions for Ignition Harness
L139 – Removal of Supercharger Bearing Thermocouple – Supercharged Engines
L140 – Approved Turbocharger Repair and Overhaul Facilities
L141 – Warranty Claims and Service on Engines with Alternator, Voltage Regulator and Associated Parts
L143 – Modification of Carburetor to Eliminate Roughness at High Altitude
L144 – Modifications to Improve Engine Starts
L145 – Corrosion Prevention in New or Overhauled Engines Installed in Inactive Aircraft
L146 – Modification of Simmonds Fuel Injector to Improve Idle and Low Speed Operator – IGSO-540-B1A
L148 – Interchangeability of MA-6AA Carburetors
L149 – Bendix Authorized Service Facilities
L151 – External Oil Filters (See S.I. No. 1319)
L152 – Density Control Calibration Curves – TVO-435 Series Helicopter Engines
L153 – Lycoming New Geared Engine Overhaul Manual (See S.L. No. L161)
L155 – Modification for Improvement of Lycoming Engines in Bell Helicopters
L157 – Engine Mounted Full Flow Oil Filter
L158 – Engines with Larger Cylinder Mounting Flanges
L160 – Generator Belt Tension Gage
L163 – Recommendations Regarding Accidental Engine Stoppage, Propeller Strike, Loss of Propeller Blade or Tip (See S.B.
No. 533)
L164 – Field Alterations of Lycoming Aircraft Engines (See S.I. No. 1304)
L165 – New Improved 10-171323-1 Transformer Coil Used on S-700 Magnetos
L166 – Ignition System Modernization
L167 – 24 Volt Starter Conversion
L168 – Replacement Idle Air Bypass Valve
L169 – Availability of Grade 91/96 Aviation Fuel (See S.I. No. 1070)
L170 – Currently Obsolete Service Bulletins, Letters and Instructions
L174 – Model 1823 Stainless Steel Turbocharger Exchange
L175 – Density Controller Calibration Test Stand (See S.L. No. L184)
L176 – Factory Remanufactured Engine Changes to Identification
L178 – Approved Oil Filter Element Kits and Spin-On Filters
L179 – Policy for Pro Rata Engine Replacement (All except 4 cylinder)
L187 – Outdated Modification Provisions
L191 – Policy for Pro Rata Engine Replacement (4 and 6 cylinder)
L194 – Policy for Extended Warranty and Pro Rata Engine
L198 – NOT USED
L201 – Recommended Time Between Overhaul Periods (S.I. No. 1009 Reactivated)
L205 – Warranty/Proration in Event of Stuck Exhaust Valves
L211 – NOT USED
L212 – NOT USED
L219 – NOT USED
L224 – NOT USED
61
LIST OF INACTIVE TEXTRON LYCOMING SERVICE BULLETINS
LETTERS AND INSTRUCTIONS
INACTIVE SERVICE INSTRUCTIONS:
1000 – Replacement of Standard Exhaust Valves with Sodium Cooled Exhaust Valves
1003 – Marvel-Schebler Service Bulletin No. 3-60
1004 – Diffuser Pinch on Supercharged Engines
1005 – Improved Valve Seats to Minimize Seat Distortion
1006 – Conversion of O-235-C Model Aircraft Engine to O-235-C1
1007 – Replacement of Engine Mount Bushings
1010 – Installation of Front Crankshaft Oil Seal, All Direct Drive Engines
1013 – Modification of Lycoming P/N 72070 Oil Filter Assembly (See S.I. No. 1169)
1015 – Tightening Torque Recommendations (See Current Table of Limits and Torque Value Recommendations)
1017 – Valve Seat Reconditioning
1018 – Correct Method for Installing Oil Pressure and Oil Suction Screens in Sump
1019 – Scintilla Bulletin No. 465A
1021 – Marvel-Schebler Bulletin No. 12-60
1022 – Marvel-Schebler Bulletins Nos. 11-60 and 13-60
1023 – Inspection Requirements Following Overboost or Overspeed (See S.B. No. 369)
1024 – Assembly of Valve Rocker Shaft Covers
1027 – Improved Piston and Ring Combination (See S.I. No. 1037)
1028 – Modification of Cylinder to Incorporate Large Stem Exhaust Valve
1030 – Cylinder Head Fin Stabilizers
1031 – Redesigned Piston and Ring Combination for Chrome Plated Cylinder Assemblies (See S.I. No. 1037)
1033 – Replacement of Propeller Shaft Seal Rings
1034 – Alternate Cylinder Assemblies for O-290-D Engines (See S.I. No. 1037)
1035 – Modifications of O.D. of Valve Seats and Height of Exhaust Valve Seats
1036 – Modifications Available for VO-540 Engines Installed in Hiller Helicopters
1038 – Torque Limit for Rocker Box Screws (See Current Table of Limits and Torque Value Recommendations)
1039 – Marvel-Schebler Bulletins Nos. A2-61 and A4-61
1041 – Special Tools for Lycoming Aircraft Engines (See Textron Lycoming Reciprocating Tool Catalog)
1045 – Checking Dry Tappet Clearance
1046 – Turbocharger Density Control and Bypass Valve Maintenance Procedures
1048 – Replacement of Carburetor Attaching Studs with Cap Screws
1049 – Lightweight Diaphragm Fuel Pump for Direct Drive Engines (See S.I. No. 1110)
1050 – Replacement of Front Crankshaft Oil Seal
1051 – Increase Running Clearance Between Exhaust Valve Stem and Guide
1052 – Approved Starters for Direct Drive Engines (See S.I. No. 1154)
1053 – Installation of Redesigned Camshaft to Increase Valve Life
1054 – Facilities for Chrome Plating Cylinder Barrels (See S.L. No. L159)
1055 – Troubleshooting Information for Scintilla S-200 and S-600 Magnetos
1056 – Installation of Vent Shields on S-200 and S-600 Series Magnetos
1057 – Replacement of Pistons at Overhaul (See S.I. No. 1037)
1058 – Replacement of Propeller Shaft Oil Seal Rings
1061 – Modification of Marvel-Schebler MA-4-5 Carburetors in Mooney and Piper Aircraft
1063 – Magnetic Inspection of Oil Screens (See S.I. No. 1285)
1064 – Modification of Reduction Gear Housing to Install Oil Seal Rings at Magneto Drive Adapters
1065 – Installation of Exhaust Flange Gaskets (See S.I. No. 1204)
1066 – Dry Tappet Clearance
1067 – Valve and Rocker Modifications to Prevent Valve Corrosion
1071 – Procedure for Tightening and Modification to Strengthen Connecting Rod Bolts
1073 – Installation of Crankshaft Oil Seal Retaining Plate Safety Kit
1074 – Scintilla Bulletin No. 480
1077 – Modification to Replace Connecting Rod Bolts
1078 – Modification to Improve Operating and Starting – Hughes 269A Helicopters
1081 – Inspection of Connecting Rods for Galling
1082 – Modification of Fitting and Hoses on Flowmeter Modulator and Nozzle Assembly
1083 – Replacement of Pistons (See S.I. No. 1037)
1085 – Modification to Secure Throttle Levers
1086 – Fuel System Conversion of IO-540-B1A5 and IGO-540-B1A
62
LIST OF INACTIVE TEXTRON LYCOMING SERVICE BULLETINS
LETTERS AND INSTRUCTIONS
INACTIVE SERVICE INSTRUCTIONS (CONT.):
1087 – Installation of Fuel Pressure Regulator and Provision of Overboard Vent
1088 – Inspection Procedure to Determine Exhaust Valve Wear (See S.B. No. 388)
1089 – Carbon Removal (Decoking) from Turbochargers
1090 – Modification to Turbocharger Exhaust Support to Prevent Chafing of Crankcase Assembly
1091 – Viton Tip Carburetor Float Valve Assembly
1093 – Rubber Cushioned Starter Drive Kit
1095 – Improved Dual Carburetor Throttle Linkage
1096 – Scintilla Bulletins Nos. 484, 487, 488, 494
1097 – Increased Torque Value for ½” Cylinder Hold-Down Nuts (See S.I. No. 1029)
1099 – Crankshaft Counterweight Bushing Identification Symbol
1100 – Inspection of Reduction Gear Housing and Replacement of Gasket and Attaching Studs
1101 – Scintilla Bulletin No. 491
1102 – Modification to Accessory Housing Breather Tube and Plate Assembly
1103 – Modification to Fuel Injector Automatic Mixture Control Assembly
1104 – Inspection and Replacement of Magneto Drive Gears and Cushion Retainers (See S.B. No. 311)
1107 – Modification of Fuel Pump Vent Lines
1114 – Repair Procedures for Worn Reduction Gear Pinion Cage
1115 – Rubber Strike-Through on Wire Braided Hose
1117 – Field Modification – Permit Use of Body Fit Bolts in Flanged Reduction Gear Units
1119 – Shielded Ignition Cable
1124 – Oil Consumption Test Limits (See S.I. No. 1427B)
1127 – Bendix RS Fuel Injection Bulletin No. 18
1128 – Vented Rocker Boxes and Tappet Vent Plugs
1131 – Modification to Incorporate Fuel Divider Rosette
1134 – Delco-Remy Bulletin No. DR-7269
1137 – Accessory Housing Modification to Incorporate Outboard Crankshaft Idler Gear Shaft Support
1146 – Turbocharger Exhaust System
1147 – Improved Rocker Box Gaskets and Attaching Screws
1150 – Removal of Lockwire, Pal Nuts and Lockwashers from Cylinder Base Nuts
1151 – Enlarged Oil Passage Hole in Sump Gasket
1153 – Avco Lycoming Five Millimeter Ignition Harness
1155 – Fuel Injector Line Support Bracket (See S.B. No. 342)
1160 – Turbocharger Compressor Clamp Replacement
1162 – Intake Pipe Replacement
1163 – Scintilla Bulletin No. 518
1165 – Scintilla Bulletin No. 522
1174 – Installation of Lightweight Turbocharger
1175 – Carburetor Float Valve Clip Replacement
1178 – Bendix Fuel Injection Bulletin No. 23
1179 – Inspection and Repair of Gear Assembly and Crankshaft (See S.B. No. 475)
1183 – New Connecting Rod Bolt with Increased Torque Limit
1184 – Repair of High Performance Connecting Rods
1188 – Bendix Fuel Injection Bulletin No. 22, Rev. 2
1194 – Bendix Fuel Injection Bulletin No. RS-25
1195 – Slow Leak-Down Hydraulic Tappet Plunger Assemblies (See S.B. No. 314)
1198 – Resetting Density Controller and Exhaust Bypass Valve
1199 – Bendix Fuel Injection Bulletin No. RS-24
1201 – Accessory Housing Modification to Accommodate New Drive Shaft (See S.I. No. 1084)
1202 – Inspection and Modification of Exhaust Bypass Valve Housing
1207 – Increased Torque for Impulse Coupling Magneto Drive Gear Nut
1217 – NOT USED
1219 – NOT USED
1220 – Bendix Special Service Bulletin No. SSB-316
1222 – Throttle Lever Stop Plate Assembly
1229 – AiResearch Instruction No. 270-1 (See S.B. No. 391)
1223 – Front Crankshaft Oil Seal Installation (See S.I. No. 1324)
63
LIST OF INACTIVE TEXTRON LYCOMING SERVICE BULLETINS
LETTERS AND INSTRUCTIONS
INACTIVE SERVICE INSTRUCTIONS (CONT.):
1235 – Oil Filter Sealant and Torque Application (See S.B. No. 337)
1245 – Bendix Bulletin No. RS-36
1258 – Crankcase P/N Listing: Catalog PC-206; IO-360 Series Engines
1261 – Sealing Oil Supply Ports
1269 – Bendix Bulletin No. 556 (See S.B. No. 376)
1272 – Hardened Oil Pump Impeller (See S.B. No. 524)
1281 – Bendix Bulletin No. 556 (See S.B. No. 376)
1303 – Solid Ring Oil Seal Installation (See S.I. No. 1324)
1317 – NOT USED
1319 – Engine Mounted Oil Filter Kits and Replacement Filters (See SSP-885-1)
1322 – NOT USED
1348 – NOT USED
1349 – NOT USED
1353 – NOT USED
1358 – Turbocharger Mount Bushings (See S.B. No. 420)
1371 – NOT USED
1372 – NOT USED
1401 – NOT USED
1405 – NOT USED
1412 – NOT USED
1426 – NOT USED
1429 – NOT USED
1440 – NOT USED
1456 – NOT USED
1460 – NOT USED
64