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-31/100 Fuel Scavenge Pump Check Valves 2/82
Applicability: Model PA-31T with S/Nos. 31T-7400002 to 31T-8120056. Model PA-31T1 with S/Nos. 31T-7804001 to 31T-8104067. Model PA-31T2 with S/Nos. 31T-8166001 to 31T-8166029.
Requirement: Action in accordance with Piper SB No. 734. Compliance: Within 100 hours time in service after 28 February 1982.
Background: The Manufacturer considers it essential to relocate the fuel scavenge pump check valves to a position aft of the firewall. This will eliminate a source of flame propagation in the event of a broken fuel line at the present location.