1AD/DHC-2/16 - Aileron Centre Hinge Bracket - Inspection

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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DHC-2 (Beaver) Series Aeroplanes

AD/DHC-2/16 Aileron Centre Hinge Bracket - Inspection 2/71

Applicability: All models with brackets P/N 02-B-58 and P/N 02-B-58-1.

Requirement: Remove the mass balance assembly from the stub tube of each centre hinge bracket and visually inspect the elliptical tube using a 4X magnifying glass for cracks in the weld areas at the connection to the torque tube and around the extremities of welded bushes.

Compliance: For components with less than 400 hours total time in service as at 31 March 1971 - at or before achieving 500 hours total time in service; or

For components with more than 400 hours total time in service as at 31 March 1971 - within 100 hours time in service after 31 March 1971; and

Thereafter at intervals not exceeding 100 hours time in service.