AD/PA-31/81 - Heater Fuel Drain Hose - Modification
1AD/PA-31/81 - Heater Fuel Drain Hose - Modification
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Piper PA-31 Series Aeroplanes
AD/PA-31/81 Heater Fuel Drain Hose - Modification 7/79
Applicability: Models PA-31, PA-31-300 and PA-31-325 with S/Nos. 31-2 to 31-7912036. PA-31- 350 with S/Nos. 31-5001 to 31-7952061.
Document: Piper SB No. 641.
Compliance: Within 100 hours time in service after 31 July 1979.
Background: Deterioration of the cabin heater fuel regulator drain hose through contact with the heater air distribution box will allow any leaking fuel to drip onto the heater exhaust and create a fire hazard.