COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Gulfstream (Grumman American/ American Aviation) AA-1 Series Aeroplanes AD/AA-1/16 Structural and Control Surface Bondlines - Inspection 9/76 Applicability: All models AA1 and AA1A with S/Nos. 0001 and subsequent and all model AA1B with S/Nos. 0001 to 0641. Document: 1. Grumman American SB No. 155; or 2. FAA AD 76-17-03. Compliance: Within 25 hours' time in service after 21 September 1976 and there- after at intervals not exceeding 100 hours' time in service until modified in accordance with SB No. 155.