COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Eurocopter SA341 and SA342 (Gazelle) Series Helicopters AD/GAZELLE/9 Main Gearbox Input Gear Flange - Inspection of Attachment Nut 5/80 Applicability: Models SA-341 and SA-342 fitted with main gearbox P/N 341A.32.1000.01 to .05, not modified in accordance with AMS 07.7076/S374. Document: Gazelle SB 65.19. Compliance: Within 100 hours time in service after 30 June 1980. Background: The manufacturer has introduced an inspection to ensure that the correct torque load has been applied to the notched nut which retains the input gear flange.