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/17 Intermediate Gearbox Attachment 4/92 Applicability: All model SA 341 and SA 342 helicopters equipped with an intermediate gearbox unmodified by AMS 341A07.1636. Requirement: Action in accordance with Aerospatiale Service Bulletin No 65-43. Note: DGAC AD 92-011-036(B) refers. Compliance: Before 8 February1992. Thereafter reinspect at each removal/installation of the intermediate gearbox until modification AMS 341A07.1636 incorporated. Background: Wear has been found on the forward attachment lug bolt. Allowed to continue this wear could lead to loss of the intermediate gearbox.