COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Schweizer (Hughes) 269 Series Helicopters
AD/HU 269/18 Tail Boom - Inspection 11/67
Applicability: Models 269A and 269B.
Requirement: Visually inspect the tail boom for cracks originating at the bolts attaching the tail rotor transmission housing to the boom and also the horizontal stabiliser forward mounting bolt.
Compliance: At intervals not exceeding 50 hours time in service after 13 May 1966.