AD/B767/161 - Engine Strut Wire Bundles (Cth)

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/B767/161 Engine Strut Wire Bundles 2/2002

Applicability: Model 767 series aeroplanes, line numbers 1 through 821 inclusive, equipped with Pratt & Whitney PW4000 series engines.

Requirement: 1. Perform a one-time detailed visual inspection of the wire bundles located in the aft section of the strut forward fairing panel of both engine struts to detect chafing damage, per Boeing Service Bulletin (SB) 767-73A0049, Revision 3, dated 20 December 2000, or Revision 4, dated 5April 2001.

Inspections accomplished prior to the effective date of this Directive per SB 767- 73A0049, Revision 2, dated 27 April 2000, or per Boeing Standard Wiring Practices Manual D6-73A0049, Subject 20-10-13 or 20-30-12, are acceptable for compliance with the applicable action specified in this Directive.

Note 1: For the purposes of this Directive, a detailed visual inspection is defined as: "An intensive visual examination of a specific structural area, system, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at intensity deemed appropriate by the inspector. Inspection aids such as mirror, magnifying lenses, etc., may be used. Surface cleaning and elaborate access procedures may be required.''