CSB11 4 Master 642085 MSB11 4B
User Manual: Master 642085
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CONTINENTAL MOTORS® AIRCRAFT ENGINE
MANDATORY SERVICE BULLETIN
The Subject Matter Of The Service Bulletin Is Incorporated In Whole
Or In Part In An FAA Issued Airworthiness Directive MSB11-4B
TECHNICAL PORTIONS
FAA APPROVED
CATEGORY 1
SUBJECT: STARTER ADAPTER INSPECTION
PURPOSE: To advise owners, operators and FBOs of mandatory replacement of certain starter
adapter part numbers 642085A17, 642085A18, 642085A19, 642085A20, 642085A22,
642085-1A1 and rebuilt starter adapter part numbers R-642085A17, R-642085A18, R-
642085A19, R-642085A22 due to possible fracture of the starter adapter shaft gear.
EFFECTIVITY: For new and rebuilt engines and aftermarket new and rebuilt starter adapters with
adapter p/n’s listed above supplied by Continental Motors with less than 100 hours
total time of operation. New and rebuilt starter drive adapters manufactured after
November 20, 2011 are not affected and compliance with this Mandatory Service
Bulletin is not required.
COMPLIANCE: Affected Engines and aftermarket starter adapters with less than 75 hours total time
must comply with this Mandatory Service Bulletin prior to further flight. Affected
engines and aftermarket starter adapters with between 75 and 100 hours total time must
comply with this Mandatory Service Bulletin within the next 10 hours of engine
operation. Affected engine and aftermarket starter adapters with more than 100 hours
total time are not affected and compliance with this Mandatory Service Bulletin is not
required.
MODELS
AFFECTED: IO-550-N (Turbo-normalized only), TSIO-520- B, BB, D, DB, E, EB, J, JB, K, KB, N,
NB, UB, VB; TSIO-550-K; TSIOF-550K engine configurations using the 642085
starter assembly part numbers listed in the paragraph titled “PURPOSE” above.
GENERAL INFORMATION:
Continental Motors (CMI) has verified fractures of 7 part number 639389 starter adapter shaft
gears utilized in the assembly of the affected starter adapter. The fractures originate in the
machined snap ring groove forward of the scavenge pump shaft gear in the scavenge pump
housing. Analysis of the fracture area indicates initiation resulted from misalignment of the
scavenge pump housing to the starter adapter cover.
WARNING
Compliance with this Bulletin is Required to Prevent Possible
Fracture of the Starter Adapter Shaft Gear Resulting In Loss Of
Engine Lubrication And Subsequent Engine Failure.
ISSUED
REVISED
PAGE NO REVISION
MO DAY YEAR MO DAY YEAR 1 of 6
11 23 2011 04 04 2012
P.O. Box 90 Mobile Alabama 251-438-3411 MSB11-4 B
© 2011-2012 CONTINENTAL MOTORS, INC.
ISSUED
REVISED
PAGE NO REVISION
MO DAY YEAR MO DAY YEAR 2 of 6
11 23 2011 04 04 2012
P.O. Box 90 Mobile Alabama 251-438-3411 MSB11-4 B
WARNING
To Prevent The Possibility Of Serious Bodily Injury Or Death,
Before Performing Any Inspection, Repair Or Moving The
Propeller Accomplish The Following:
1. Verify Aircraft Master And Magneto Switches Are In The
OFF Position.
2. Throttle Position CLOSED
3. Mixture Control To IDLE CUT-OFF
4. Set Brakes And Block Aircraft Wheels.
5. Insure That Aircraft Tie-Downs Are Installed And Verify That
The Cabin Door Latch Is Open.
6. Do Not Stand Within Arc Of The Propeller Blades While
Turning The Propeller.
INSPECTION:
Determine applicability by inspection of the engine and / or aircraft maintenance records and by
visual inspection of the engine data plate and starter adapter part number.
New and rebuilt starter drive adapters with affected p/n’s supplied by Continental
Motors, Inc. on new or rebuilt engines, or replacement new or rebuilt spare starter
adapters purchased from Continental Motors.
If you require assistance in determining affectivity contact Continental Motors, Inc.
Customer Service at 1-888-826-5465. Please be prepared to provide the engine model
and serial number during the contact.
Replacement compliant starter adapters are identified by a vibro-peened manufacturer code below
the ink stamped starter adapter part number as depicted below. See FIGURE 1 on page 5.
COMPLIANCE:
For affected starter adapters with 75 hours total time or less; replacement of the starter adapter is
required prior to further flight.
For affected starter adapters with between 75 and 100 hours total time, replacement of the starter
adapter is required within the next 10 hours of engine operation.
Starter adapters with more than 100 hours total time are not affected and compliance with this
Mandatory Service Bulletin is not required. However, the Compliance Form on page 6 of this
bulletin must be completed and submitted to Continental Motors, Inc.
WARNING
Starter adapters manufactured and supplied by Continental
Motors, Inc may be used to comply with this Mandatory Service
Bulletin. If necessary, Continental Motors, Inc. may approve the
use of a repaired or overhauled starter adapter that has been
provided by a facility that is FAA approved to perform such
repairs and overhaul. However, in no case may an affected starter
adapter be repaired or overhauled to meet compliance with this
bulletin.
All affected starter adapters must be returned to Continental
Motors, Inc as directed in this bulletin. Failure to return starter
adapters as directed will delay processing of warranty claims.
STARTER ADAPTER REPLACEMENT:
Refer to the airframe manufactures instructions to gain access to the starter adapter.
Starter adapter replacement must be accomplished in accordance with the instructions in the
overhaul manual and service bulletins applicable to the affected engine models.
Replacement starter adapters that incorporate assembly corrective action are identified by a vibro-
peened manufacturer code below the ink stamped starter adapter part number as depicted below.
See Figure 1 on page 5.
WARRANTY:
The actions required to comply with this bulletin are covered by the applicable engine or spare
parts warranty policy in effect at the time the engine or service spare part was purchased.
Continental Motors reserves the right to request copies of invoices and maintenance records to
verify warranty applicability.
Compliance with the bulletin must be completed no later that July 1, 2012.
NOTE: Visit Continental Motors Inc.’s web-site www.genuinecontinental.aero to obtain copies of
CMI Warranty Policies.
If affectivity of the installed starter adapter cannot be determined from the aircraft/engine
maintenance records, CMI will allow 1 hour labor to inspect and identify the starter adapter to
determine the affectivity. Complete the required 2 copies of the compliance form. Compliance
forms must be submitted immediately upon completion with one copy accompanying parts and
the second copy sent separately. Compliance forms should only be completed for engines that
have the affected starter adapters including those engines that are affected and have accumulated
more than 100 hours time on the starter adapter.
Completed compliance form must be mailed or faxed to the following:
Continental Motors Inc.
c/o MSB11-4B
P.O. Box 90
Mobile, AL 36601
Or
Fax to 251-436-8270
ISSUED
REVISED
PAGE NO REVISION
MO DAY YEAR MO DAY YEAR 3 of 6
11 23 2011 04 04 2012
P.O. Box 90 Mobile Alabama 251-438-3411 MSB11-4 B
ISSUED
REVISED
PAGE NO REVISION
MO DAY YEAR MO DAY YEAR 4 of 6
11 23 2011 04 04 2012
P.O. Box 90 Mobile Alabama 251-438-3411 MSB11-4 B
Visual Inspection Labor Allowance:
0.5 man-hours at published shop labor rate
Starter Adapter Replacement Labor Allowance:
Labor allowance for compliance with this bulletin will be in accordance with the CMI
published labor allowance for the specific engine.
Replacement parts required to comply with this bulletin must be ordered through direct contact
with Continental Motors Inc. at 888-826-5465. When placing your order be sure to specify that
the items are being ordered to comply with this bulletin, specifying bulletin number and revision
level. Continental Motors will issue a return code which must be included in the upper right hand
corner of the compliance form on page 6. This bulletin is your authorization to perform the
required inspection and, if necessary, replacement of the affected part(s). Continental Motors will
process warranty upon receipt of the affect parts and completed compliance form. All affected
parts that are removed for compliance with this bulletin should be returned to the following
address with a completed copy of the compliance form located in appendix A of this document:
Continental Motors Factory Service Center
8600 County Road 32
Fairhope, AL 36532
Do not return any parts to Continental Motors without the compliance form completed in full.
Failure to return the bulletin compliance form will delay processing of applicable warranty credit.
Parts returned without proper documentation will result in delays in processing your warranty
reimbursement.
FIGURE 1. Example of Vibro-Peened Manufacturer Code
New and rebuilt compliant starter adapters supplied by Continental Motors Inc (CMI) are
identifiable by a vibro-peened manufacturer code below the ink stamped assembly part number,
example of 4 digit code is shown in FIGURE 1.
ISSUED
REVISED
PAGE NO REVISION
MO DAY YEAR MO DAY YEAR 5 of 6
11 23 2011 04 04 2012
P.O. Box 90 Mobile Alabama 251-438-3411 MSB11-4 B
ISSUED
REVISED
PAGE NO REVISION
MO DAY YEAR MO DAY YEAR 6 of 6
11 23 2011 04 04 2012
P.O. Box 90 Mobile Alabama 251-438-3411 MSB11-4 B
COMPLIANCE FORM
MSB11-4
Complete one form for each affected engine or new or rebuilt spare starter adapter
Owner Name: Phone: Date: Return Code:
Address:
City: State/Country: Zip Code:
FBO Name: Phone: FAX:
Address:
City: State/Country: Zip Code:
FBO Posted Labor Rate: Labor Hours Applied: Total Cost:
Send Reimbursement Payment to above address (or complete below)
Name: Phone: FAX:
Address:
City: State/Country: Zip Code:
Aircraft Registration #: Airframe Make/Model: Airframe S/N:
Engine Model: Serial Number: Position:
Engine Total Time: Date Engine Placed in Service:
Starter Adapter P/N: Starter Adapter T.T.:
* Purchase Date of Starter Adapter: * Starter Adapter T.T.:
* Complete this line for new or rebuilt spare starter adapter only.
COMMENTS: All affected parts that are removed for compliance with this bulletin should be returned to the following
address with a completed copy of this compliance form:
Continental Motors Factory Service Center
8600 County Road 32
Fairhope, AL 36532
Mark Shipping Label: “Warranty Engine Parts” UPS Account Number 161609
Note: Two copies of the form are required. One is to be mailed or faxed
to Continental Motors, Inc, the other is to be included with the removed
starter adapter when shipped to the Continental Motors Factory Service
Center. Continental Motors, Inc. Fax number is 251-436-8270.
Signature of Repair Agent:___________________________________________
