AD/B767/142 - Oxygen Generators (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/B767/142 Oxygen Generators 7/2001 DM

Applicability: Model 767 series aeroplanes, equipped with chemical oxygen generators, as listed in the following Boeing Special Attention Service Bulletins:

B767-35-0043 dated 1 March 2001, and B767-35-0044 dated 1 March 2001.

Requirement: 1. For airplanes having any chemical oxygen generator and/or passenger, attendant, or lavatory service unit assembly that contains a chemical oxygen generator that has been replaced, carry out a detailed visual inspection of the chemical oxygen generator of the applicable assembly to verify correct installation of the release pin in the generator firing mechanism in accordance with the Accomplishment Instructions of either Service Bulletin (SB) B767-35-0043 or B767-35-0044, as applicable.

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."