COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Piper PA-32 (Cherokee Six) Series Aeroplanes AD/PA-32/54 Amdt 2 Oil Coolers - Inspection and Replacement 10/78 Applicability: Model PA-32R-300 with S/Nos. 32R-7680001 to 32R7880068. Model PA-32RT-300 with S/Nos. 32R-7885001 to 32R-7885207. Document: Piper SB No. 586B. Compliance: For Part 1 - As detailed in requirement document. For Part 2 - Before 31 August 1979. Note: The Daily Inspection referred to in Part 1 of the reference document may be carried out by the pilot in command, in which case certification is not required.