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-6/43
Amdt 1
Elevator Housing Assembly Lower Mounting Structure
9/91
Applicability: Model DHC-6 with serial numbers 2 through 494, 497 through 503, 505 and 507.
Requirement: Action in accordance with the Technical Requirements of Transport Canada AD CF- 77-05 R1.
Note: De Havilland SB 6/348 refers.
Compliance: As specified in the Requirement Document.
Background: This amendment is raised to reflect transport Canada’s ageing aircraft program, which requires terminating action rather than repetitive inspections for known critical service problems.