COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 727 Series Aeroplanes AD/B727/67 Nose Gear Drag Brace Lock Actuating Arm - Replacement 3/71 Applicability: All models. Requirement: Replace nose gear drag brace lock actuating arms P/Nos. 65-20687-6, -7 or -8 in accordance with Boeing SB No. 32-162, Rev. 1. Compliance: 1. For components with less than 4000 landings as at 15 March 1971 - before exceeding 5000 landings. 2. For components with between 4000 and 9000 landings as at 15 March 1971 - within 1000 landings from 15 March 1971. 3. For components with between 9000 and 9800 landings as at 15 March 1971 - before exceeding 10,000 landings. 4. For components with more than 9800 landings as at 15 March 1971 - within 200 landings from 15 March 1971.