COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Enstrom F-28 Series Helicopters
AD/ENST 28/8 Fuselage Structure - Inspection 10/73
Applicability: All models.
Requirement: Visually inspect for cracks the fuselage structure in the vicinity of the main rotor transmission assembly attachment.
Compliance: Within 50 hours time in service after 17 October 1975 and thereafter at intervals not exceeding 100 hours time in service.