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-31/64 Fuel Selector Lever Assemblies - Inspection 4/78 Applicability: Models PA-31 and PA-31-325 with S/Nos. 31-7612040 to 31-7812023, 31-7812025 to 31-7812035, 31-7812038 to 31-7812041 and 31-7812043 to 31-7812047. Document: Piper SB No. 592. Compliance: Within 10 hours time in service after 6 March 1978.