COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 727 Series Aeroplanes AD/B727/73 Nose Landing Gear Release Mechanism Torsion Shaft - Inspection 5/76 Applicability: All models not modified in accordance with SB No. 727-32-205 or 727-32-223. Document: 1. FAA AD 76-07-05 Amdt. 39-2569; or 2. Boeing SB No. 727-32-238, Rev. 1. Compliance: In accordance with the requirement document.