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-6/29 Airframe De-Icing System - Modification 8/71
Applicability: All models with S/Nos. 1 to 289 incorporating airframe de-icing (De Havilland of Canada SOO 6004).
Document: De Havilland of Canada SB 6/275. Compliance: Before 1 September 1971.