Garmin Stc For Eurocopter As 350B2 B3 Instruction Manual Instructions Continued Airworthiness
2015-05-27
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Page Count: 80
- Section 01-00-00 Introduction
- CHAPTER 4
- CHAPTER 5
- CHAPTER 6
- CHAPTER 8
- CHAPTER 12
- CHAPTER 20
- Section 20-00-00 Standard Practices
- Section 20-10-00 Torques Maintenance Practices
- 1. Torque Wrenches
- (1) Be sure the bolt and nut and the surface they bear on are clean and dry, unless otherwise specified by the manufacturer.
- (2) Run the nut down to near contact with the washer or bearing surface and check the friction drag torque required to turn the nut. Add the friction drag torque to the desired torque to arrive at the “final torque” to be registered on the torque wren...
- (3) Whenever possible, apply the torque to the nut instead of the bolt. This will reduce rotation of the bolt in the hole and reduce wear.
- (4) Apply a smooth even pull when applying torque pressure.
- (5) If special adapters are used which will change the effective length of the torque wrench, the final torque indication or wrench setting must be adjusted accordingly. To determine the torque wrench setting or indication with adapter installed refer...
- 2. Torque Wrenches
- 1. Torque Wrenches
- Section 20-30-00 Painting Maintenance Practices
- Section 20-40-00 Corrosion Control Maintenance Practices
- 1. Corrosion Control
- 2. Corrosion Removal
- (2) Using a fiber brush, apply sufficient paint stripper, (Turco 5873), to cover area of removal.
- Note: If paint stripper evaporates quickly or works slowly, cover area with plastic sheet.
- (3) Allow paint remover to remain on surface for a time sufficient to cause wrinkling and lifting of paint (about 10-30 minutes).
- (4) Using non-metallic scraper or abrasive pads, (3M scotchbrite 63), scrub area to further loosen paint.
- (5) Re-apply paint stripper, (Turco 5873), as necessary in areas where paint remains tightly adherent.
- (6) Wash and scrub surface with demineralized water and alkaline cleaner to neutralize paint stripper.
- (8) Rinse with demineralized water.
- Note: Aircraft shall be electrically grounded during corrosion removal operations. When removing exterior corrosion from electronic boxes, the unit case shall be electrically grounded during the complete operation.
- (1) Corrosion shall be removed by the mildest method possible.
- Note: On high strength steel, do not use power tools other than a flap brush or mandrel with abrasive mat; overheating and notching may occur.
- (2) Ensure all active corrosion and corrosion products have been removed.
- (3) Using 320 grit sandpaper blend edges of paint (if applicable) surrounding repair area to create a smooth transition. Vacuum area thoroughly to remove all contaminates.
- (4) Apply aluminum surface treatment if applicable. (Ref. Item 4. Below).
- 3. Mechanical Defects (Nicks, Scratches, Gouges, Etc.)
- Note: On high strength steel, do not use power tools other than a flap brush or mandrel with abrasive mat; overheating and notching may occur.
- (1) Remove defect using flap wheel, abrasive disk, abrasive paper, or plastic media blast.
- (2) Using 320 grit sandpaper, blend edges of paint surrounding repair area to create a smooth transition.
- (3) Apply aluminum surface treatment if applicable. (Ref. Item 4. Below).
- (4) Touch-up primer and paint to match original.
- 4. Aluminum Alloy Surface Touch-Up Treatment
- Section 20-50-00 Mechanical Fastener Sealing Methods
- Section 20-90-00 Dye Penetrant Inspection Methods
- CHAPTER 31