COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Piper PA-42 (Cheyenne III) Series Aeroplanes
AD/PA-42/2 Nacelle Fuel Tank Check Valve - Installation 4/83
Applicability: All model PA-42 with S/Nos. 42-7800002 to 42-8001070. Document: Piper SB No. 736.
Compliance: Within 100 hours time in service after 30 June 1983.
Background: Should an engine fire occur, a broken fuel scavenge pump return line assembly could become a source of flame propagation.