COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
DHC-6 (Twin Otter) Series Aeroplanes
AD/DHC-6/44 Lower Wing Skin to Spar Rivets - Inspection 11/76
Applicability: All models with S/Nos. 1 to 230 inclusive. Document: De Havilland of Canada SB No. 6/351.
Compliance: Within 100 hours time in service after 31 January 1977.