COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Ryan ST Series Aeroplanes
AD/RYAN/1B Lower Flying Wire Lug - Replacement NK
Applicability: All models.
Requirement: 1. Replace the lower flying wire attachment lugs (P/N 5-123-15) at fuselage bulkhead No. 2 with reinforced lugs as detailed below.
2. The lugs shall be braced against drag loads in a manner acceptable to the Secretary,.
Compliance: Unless already accomplished - within 100 hours time in service after 29 November 1974.