COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Aerospatiale Rallye Series Aeroplanes AD/MSR/22 Rear Fuselage Structure - Inspection 6/76 Applicability: All models. Requirement: 1. Remove the fuselage tail-cone and fin dorsal fairing and, with the aid of a torch, visually inspect the fuselage internal and external stringers for corrosion. 2. If corrosion is detected remove the empennage components and perform a detailed visual inspection of the rear fuselage structure for corrosion damage. Compliance: Before 15 July 1976 and thereafter at intervals not exceeding 3 years.