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-6/7
Amdt 1
Elevator Rear Spar - Inspection and Modification
1/68
Applicability: All Models With S/Nos. 1 To 105.
Document: De Havilland Of Canada Mod. Bulletins 6/1134 And 6/1135.
Compliance: Inspect In Accordance With Mod. Bulletin 6/1134 At Intervals Not Exceeding 50 Hours Time In Service Until Modified To Bulletin 6/1134 Or 6/1135. Modify In Accordance With Mod. Bulletin 6/1135 Before 1 April 1968.