Airworthiness Directive · Amendment 39-13918 · Boeing Model 767-300 and 767-300F Series Airplanes Equipped With General Electric or Pratt & Whitney Engines
Boeing Model 767-300 and 767-300F Series Airplanes Equipped With General Electric or Pratt & Whitney Engines
Model 767-300 and 767-300F series airplanes, equipped with General Electric or Pratt & Whitney engines; as listed in Boeing Alert Service Bulletin 767-54A0096, Revision 2, dated December 18, 2003; certificated in any category.
This amendment adopts a new airworthiness directive (AD), that is applicable to certain Boeing Model 767-300 and 767-300F series airplanes equipped with General Electric or Pratt & Whitney engines. This AD requires reworking the wing-to-strut diagonal braces and the aft pitch load fittings of the wings, and reinstalling the diagonal braces with new fuse pins and associated hardware. This action is necessary to prevent undetected loss of the diagonal brace fuse pins of the wings and consequent increased loads in other wing-to-strut joints, which could result in separation of the struts and engines from the wings. This action is intended to address the identified unsafe condition.
To prevent undetected loss of the diagonal brace fuse pins of the wings and consequent increased loads in other wing-to-strut joints, which could result in separation of the struts and engines from the wings, accomplish the following:
(a) Remove and rework the diagonal braces of the engine nacelles/pylons, rework the aft pitch load fittings of the wings, and reinstall the diagonal braces with new fuse pins and associated hardware by doing all actions specified in steps 3.B.1. through 3.B.11. inclusive, of the Work Instructions of Boeing Alert Service Bulletin 767-54A0096, Revision 2, dated December 18, 2003, as modified by Boeing Service Bulletin Information Notice 767-54A0096 IN 03, dated April 15, 2004. Where the service bulletin directs that the Boeing 767 Airplane Maintenance Manual (AMM) Subject 54-51-01 must be used, either AMM Subject 54-51-01 or AMM Subject 54-51-05 may be used. Do the actions at the later of the times specified in paragraphs (a)(1) and (a)(2) of this AD.
(1) Prior to the accumulation of 12,000 total flight cycles, or within 6 years after the date of issuance of the original Airworthiness Certificate or the original Export Certificate of Airworthiness, whichever occurs first.
(2) Within 24 months after the effective date of this AD.
(b) For airplanes modified in accordance with the original issue of Boeing Service Bulletin 767-54-0096, dated August 31, 2000: Within 24 months after the effective date of this AD, replace the bushings of the aft pitch load fittings of the wings with new bushings, rework the aft pitch load fittings, and install new fuse pins, by doing all actions specified in steps 3.B.1. through 3.B.10. inclusive, of the Work Instructions Additional Work section of Boeing Alert Service Bulletin 767-54A0096, Revision 2, dated December 18, 2003, as modified by Boeing Service Bulletin Information Notice 767-54A0096 IN 03, dated April 15, 2004. Where the service bulletin directs that the Boeing 767 AMM Subject 54-51-01 must be used, either AMM Subject 54-51-01 or AMM Subject 54-51-05 may be used.
(c)(1) In accordance with 14 CFR 39.19, the Manager, Seattle Aircraft Certification Office (ACO), FAA, is authorized to approve alternative methods of compliance (AMOCs) for this AD.
(2) An AMOC that provides an acceptable level of safety may be used for any repair required by this AD, if it is approved by a Boeing Company Designated Engineering Representative who has been authorized by the Manager, Seattle ACO, to make such findings.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
