COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Piper PA-25 (Pawnee) Series Aeroplanes
AD/PA-25/9 Sealing of Rear Fuel Tank Bay 10/62
Applicability: Model PA-25-235 and variants of that model.
Requirement: All openings between the fuselage fuel tank bay and the hopper bay shall be sealed with plates of 2024ST material not less than 24 gauge or other material having at least equivalent fire resistant properties.
Compliance: Before 1 September 1971.