COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES AlliedSignal (Lycoming) Turbine Engines - T53 Series AD/T53/6 Overspeed Pickup Gear and Shaft - Inspection and Modification Applicability: All model T5313A, T5313A S/No. Suffix "A", and T5313B. Document: 1. Lycoming Field service Bulletin No. 0022, Rev. 1; and 2. Lycoming Overhaul Mod. Bulletin No. 0036, Rev. 1; or 3. AD/LYC-T/6A. 1/86 Compliance: 1. Inspect in accordance with Lycoming FSB No. 0022, Rev. 1 Part 1 within 25 hours time in service after 25 February 1971 and thereafter at intervals not exceeding 25 hours time in service until modified. 2. Modify within 200 hours time in service after 30 June 1971 in accordance with Part 11 of FSB No. 0022 Rev. 1, or OMB No. 0036, Rev. 1.