COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Short SD3-30 Series Aeroplanes AD/SD3-30/24 Nose Landing Gear Pins 2/89 Applicability: All models with NLG Assemblies Part No 18001 Serial Nos 017 thru 097. Requirement: Action in accordance with Menasco Service Bulletin No.32-69. Note: Shorts Service Bulletin SD 330-32-119 refers. Compliance: Prior to the accumulation of 30,000 landings. Background: It has been found during fatigue testing that pins P/No 18109-3 and 18110-3 have a limited service life.