COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Piper PA-31 Series Aeroplanes
AD/PA-31/53 Exhaust Transition Coupling - Retirement Life 3/77
Applicability: Model PA-31P.
Requirement: Retire from service the exhaust transition clamp P/N LW-12125-3 and gasket P/No.
75845.
Compliance: 1. For aircraft with less than 400 hours time in service:
Before attaining 600 hours time in service.
2. For aircraft with more than 400 hours time in service: Within 200 hours time in service after.
3. For Paras. 1 and 2:
Thereafter at intervals not exceeding 600 hours time in service.
Note: For further details refer Lycoming SB No. 395.