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-32/21 Seat Belt Attachment - Modification 5/71 Applicability: All model PA-32-260, with S/Nos. 32-04, 32-1 to 32-14, 32-16 to 32-20, 32-22 to 32- 1075, 32-1111 to 32-1194, 32-1251 to 32-1283, 32-1285 to 32-1287, 32-1289, 32- 1291 to 32-1295, 32-1297, 32-7100001 to 32-7100005. All models PA-32-300 and PA-32S-300 with S/Nos. 32-15, 32-21, 32-40000 to 32-40545, 32-40566 to 32-40777, 32-40851 to 32-40956, 32-40959 to 32-40974, 32-7140001 to 32-7140008, 3207140011, 32-7140012. Document: Piper SB No. 329A. Compliance: Within 100 hours time in service after 31 May 1971.