Airworthiness Directive · Amendment 39-13066 · McDonnell Douglas Model MD-11 and MD-11F Airplanes
McDonnell Douglas Model MD-11 and MD-11F Airplanes
Model MD-11 and MD-11F airplanes, as listed in Boeing Alert Service Bulletin MD11-24A179, Revision 02, dated December 19, 2001; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 and MD-11F airplanes, that requires an inspection to detect damage of the wiring/ bundles routed to the wire support bar of the circuit breaker panel and to the circuit breakers, and an inspection of the wiring/bundles for correct routing. This amendment also requires installation of protective sleeving, spacers, and sta-straps; and corrective/follow-on actions, if necessary. The actions specified by this AD are necessary to prevent chafing and consequent arcing or loss of electrical power to associated avionics buses in the upper avionics circuit breaker panel of the main observer's station, which could result in smoke and/or fire in the cockpit. This action is intended to address the identified unsafe condition.
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.
