AD/B767/229 - Main Tank Fuel Boost Pump Flame Arrestor (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 39.001(1) of CASR 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/B767/229 Main Tank Fuel Boost Pump Flame Arrestor 4/2007

Applicability: Boeing Model 767-200, -300, -300F, and -400ER series aeroplanes. Requirement: 1. Except as provided by the optional terminating action; do a detailed inspection of each main tank fuel boost pump to determine if the pump shaft flame arrestor is installed, a measurement of the flame arrestor's position in the pump, and all applicable corrective actions, by accomplishing all the actions specified in the Accomplishment Instructions of Boeing Alert Service Bulletin (ASB) 767-28A0077 (for Model 767-200, -300, and -300F series aeroplanes) or Boeing ASB 767-28A0081 (for Model 767-400ER series aeroplanes), both Revision 1, both dated 8 July 2004, as applicable.

Inspections accomplished before the effective date of this AD in accordance with Boeing ASB 767-28A0077, dated 6 March 2003; or Boeing ASB 767-28A0081, dated 6 March 2003; are considered acceptable for compliance with the corresponding actions specified in Requirement 1 and 3 of this AD.

Note 1: Boeing Alert Service Bulletins 767-28A0077 and 767-28A0081 reference Hamilton Sundstrand Service Bulletin 5006003-28-2, dated 25 October 2002, as an additional source of service information for accomplishment of the inspection and corrective actions. Although the Hamilton Sundstrand service bulletin specifies to return main tank fuel boost pumps with damaged, broken, or out- of-position flame arrestors to a repair shop, that action is not required by this AD.