AD/B737/134 - Argo-Tech/TRW Fuel Boost Pumps (Cth)

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

Boeing 737 Series Aeroplanes

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 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.

AD/B737/134 Argo-Tech/TRW Fuel Boost Pumps 2/2000 DM

Applicability: Model 737-100, -200, -300, -400, and -500 series aeroplanes equipped with Argo- Tech/TRW (Thompson Ramo Wooldbridge) fuel tank boost pumps having part numbers (P/N) 258000-2, -3, and -5, or 382300-1, -2, and -3.

Requirement: 1. Unless accomplished previously, perform a one-time detailed visual inspection to detect discrepant breather plugs (including loose, damaged, and missing plugs) in the fuel tank boost pumps in accordance with Boeing Telex M-7200-98-03173, dated 21 October 1998 or Boeing Alert Service Bulletin 737-28A1134, Revision 1, dated 10 June 1999.

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."