COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Pratt and Whitney Piston Engines AD/PW-P/14 Cam Reduction Gear Assembly - Replacement NK Applicability: Wasp Junior and R985. Document: 1. Pratt & Whitney SB 1671 Supp. No. 1 Rev. A; or 2. FAA AD 66-14-4. Compliance: Forthwith.