COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Piper PA-30 & 39 (Twin Comanche) Series Aeroplanes AD/PA-30/3 Stabilator Torque Tube - Modification 3/65 Applicability: Model PA-30 with S/Nos. 30-1 to 30-565. Document: 1. Piper SB No. 222A; or 2. FAA AD 64-28-3. Compliance: Forthwith.