COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Boeing 767 Series Aeroplanes

AD/B767/169 Wing Leading Edge Slat Tripod Strut Assembly 7/2002

Applicability: Model 767 series aircraft, line numbers 160 through 541.

Requirement: Action in accordance with the technical requirements of FAA AD 2002-08-15 Amdt 39-12723.

Note: Boeing Service Bulletin (SB) 767-57A0058 Revision 1 and SB 767-57-0037 refer.

Compliance: As specified in the Requirement document.

This Airworthiness Directive becomes effective on 11 July 2002.

Background: The manufacturer found damaged bushings in the wing leading edge slat inboard support tripod strut assembly on a production aircraft. The tripod strut assembly supports the inboard leading edge slat and is the primary inboard-outboard load path of the slat. Damage, due to preload, can lead to loss of primary load path for the slat and result in loss of the slat.

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 27 May 2002

The above AD is notified in the Commonwealth of Australia Gazette on 19 June 2002.

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