AD/DHC-1/33 Amdt 1 - Tailplane Support Struts
1AD/DHC-1/33 Amdt 1 - Tailplane Support Struts
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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De Havilland DHC-1 (Chipmunk) Series Aeroplanes
AD/DHC-1/33
Amdt 1
Tailplane Support Struts 12/93
Applicability: English production Chipmunk.
Requirement: Action in accordance with British Aerospace Mandatory TNS CT(C1) 186 issue 2.
Compliance: 1. Unless already accomplished in accordance with the initial issue of this Directive and holding a BAe radiographic acceptable assessment from that inspection; within three months after 11 November 1993.
2. Seven years, with repeat inspections at periods not exceeding seven years after:
the installation of new struts, or
b. compliance with either the initial issue or this amendment of this Directive.
Note: Compliance date for the initial issue of this Directive was 20 November 1992.
Background: A case of internal corrosion in a tailplane attachment strut was reported. The initial issue of the Directive required an external visual inspection, rework and NDI. Amendment 1 introduces a repeat inspection, and revises and clarifies the technical requirements via the TNS.