COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES GAF N22 and N24 Series Aeroplanes AD/GAF-N22/10 Main Landing Gear - Inspection 5/76 Applicability: All models N22 and N22B with S/Nos. N22-2, N22-3M, N22-4, N22B-5M, N22B- 6M, N22B-7, N22-8M, N22-9M, N22B-11M, N22B-12M, N22B-13M and N22B-14. Document: GAF SB No. N22.32.4. Compliance: Within 100 hours time in service after 31 May 1976.