AD/S-76/38 - Main Rotor Gear Box No. 1 and No. 2 Input Bevel Pinion Housing Assemblies - Inspection
1AD/S-76/38 - Main Rotor Gear Box No. 1 and No. 2 Input Bevel Pinion Housing Assemblies - Inspection
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Sikorsky S-76 Series Helicopters
AD/S-76/38 Main Rotor Gear Box No. 1 and No. 2 Input Bevel
Pinion Housing Assemblies - Inspection
Applicability: As per the Requirement Document. Requirement: Sikorsky S.B. No. 76-66-19.
Compliance: 1. Prior to the issue of an initial Certificate of Airworthiness; or
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- Prior to the installation of a MRGB called up in the Requirement Document.
Background: During the overhaul of a gearbox, the manufacturer found a torque loss on the input bevel pinion housing assembly retaining nuts.