Airworthiness Directive · Amendment 39-16393 · Wings
The Boeing Company Model 767-300 Series Airplanes
This AD applies to The Boeing Company Model 767-300 series airplanes, certificated in any category; as identified in Boeing Alert Service Bulletin 767-57A0122, dated October 22, 2009.
We are adopting a new airworthiness directive (AD) for certain Model 767-300 series airplanes. This AD requires replacing a wire bundle clamp and installing a tetrafluoroethylene (TFE 2X) sleeve. This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent chafing of a wiring bundle, which could result in a high-energy short and, consequently, a possible ignition source in the center auxiliary fuel tank.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 60 months after the effective date of this AD, install a tetrafluoroethylene (TFE 2X) sleeve and a wire bundle clamp, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 767-57A0122, dated October 22, 2009.
