Airworthiness Directive · Amendment 39-14558 · Boeing Model 767 Airplanes
Boeing Model 767 Airplanes
This AD applies to Boeing Model 767-200, -300, and -300F series airplanes, as identified in Boeing Service Bulletin 767-28A0071, Revision 2, dated December 8, 2005; and Model 767-400ER series airplanes, as identified in Boeing Service Bulletin 767-28A0072, Revision 2, dated December 8, 2005; certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 767 airplanes. This AD requires performing a test of the bonding resistance between the engine fuel feed tube fitting and the front spar, applying sealant on a hex nut inside the dry bay, and performing any applicable corrective actions. This AD results from a report that the engine fuel feed tubes were found not electrically bonded to the front spar. We are issuing this AD to prevent an ignition source from entering the fuel tank during a lightning strike event, which could cause a fuel tank explosion.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
The term “service bulletin,” as used in this AD, means the Work Instructions of the following service bulletins, as applicable:
(1) For Model 767-200, -300, and -300F series airplanes: Boeing Service Bulletin 767-28A0071, Revision 2, dated December 8, 2005; and
(2) For Model 767-400ER series airplanes: Boeing Service Bulletin 767-28A0072, Revision 2, dated December 8, 2005.
Within 60 months after the effective date of this AD: Do a test of the bonding resistance between the engine fuel feed tube fitting and the front spar, apply sealant on a hex nut inside the dry bay, and do all applicable corrective actions, by accomplishing all of the actions in the applicable service bulletin. Do all applicable corrective actions before further flight.
Actions done before the effective date of this AD in accordance with Boeing Alert Service Bulletin 767-28A0071, Revision 1, dated January 22, 2004; or Boeing Alert Service Bulletin 767-28A0072, Revision 1, dated January 22, 2004, are acceptable for compliance with the requirements of paragraph (g) of this AD.
