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-6/3 Airstair Door Safety Guard - Modification 7/67 Applicability: All models with S/Nos. 1 to 60, excluding Nos. 25 and 30, fitted with an airstair door. Document: De Havilland of Canada Mod. Bulletin 6/1068.
Compliance: Before 1 September 1971.