COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 727 Series Aeroplanes AD/B727/79 Static Sensing Holes - Modification 6/77 Applicability: All model B727-100 and -200 aircraft with static sensing holes of .047 inch diameter. Document: 1. FAA AD 77-02-02; or 2. Boeing SB No. 727-34-94. Compliance: Within 3000 hours time in service after 30 June 1977.