Federal Register of Legislation
Boeing 747 Series Aeroplanes
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/B747/193 and issues the following 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.
AD/B747/193 Amdt 1
Fuel Leaks 12/2000
Applicability: Model 747 series aeroplanes, with line number 1 through 1006 inclusive and certificated in any category.
Requirement: 1. For aeroplanes with line number 629 through 1006 inclusive and powered by General Electric or Rolls Royce engines; perform a one-time inspection to determine the part number of the fuel shutoff spar valve installed for the left- and right-hand outboard engines in accordance with Boeing Alert Service Bulletin 747-28A2199 dated August 1, 1996; Boeing Service Bulletin 747-28A2199, Revision 1, dated October 1, 1998; or Boeing Service Bulletin 747-28A2199, Revision 2, dated July 8, 1999.
(a) If a valve having part number (P/N) S343T003-40 (ITT P/N 125334D-1) is installed, no further action is required by this AD.
(b) If a valve P/N S343T003-40 (ITT P/N 125334D-1) is not installed then either:
(i) replace the valve in accordance with the requirements of the service bulletin, or
(ii) modify the valve in accordance with the requirements of the service bulletin.
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