COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Gates Learjet 24 & 25 Series Aeroplanes AD/LEARJET/9 Spoiler Actuator Bracket And Bushing - Inspection 5/75 Applicability: All model 24 with S/Nos. 24-269 to 24-312, all model 25 with S/Nos. 25-115 to 25- 186, and other aeroplanes with Kit No. AMK 73-1 fitted. Document: Gates Learjet SB 24/25-261. Compliance: Within 100 hours time in service after 30 June 1975.