AD/B767/143 - Main Passenger Door 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/B767/143 Main Passenger Door Wire Bundles 8/2001

Applicability: Model 767-300 series aeroplanes, as listed in Boeing Alert Service Bulletin (ASB) 767-33A0085, Revision 2, dated 7 December 2000.

Requirement: 1. Carry out one-time general visual inspection to detect chafing and determine adequate clearance of the wire bundles above the F4/G2 galley, in accordance with Figure 1 or Figure 3, as applicable, of the Accomplishment Instructions of ASB 767-33A0085, Revision 2.

Note 1: For the purposes of this Directive, a general visual inspection is defined as: "A visual examination of an interior or exterior area, installation, or assembly to find obvious damage, failure, or irregularity. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or drop-light and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked."

2. If chafing and/or inadequate clearance is found during the Requirement 1 inspection, repair or replace damaged wires in the wire bundles; install a bracket assembly on the wire bundle support bracket; install nut spacer plates; and re-route the wire bundles away from the ceiling support bracket, as applicable, as specified by and in accordance with Figure 2 or Figure 3, as applicable, of the Accomplishment Instructions of the ASB.