Airworthiness Directive · Amendment 39-11457 · McDonnell Douglas Model MD-11 and MD- 11F Series Airplanes
McDonnell Douglas Model MD-11 and MD- 11F Series Airplanes
Superseded. A later AD replaced this one: AD 2010-11-12. Comply with the one in force.
Model MD-11 and MD-11F series airplanes, as listed in McDonnell Douglas Alert Service Bulletin MD11-28A101, dated August 24, 1998, certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 and MD-11F series airplanes, that requires a one-time inspection to determine if metallic transitions are installed on wire harnesses of the tail tank fuel transfer pumps, and to determine if damaged wires are present; and repair, if necessary. This amendment also would require repetitive inspections of the repaired area; and a permanent modification of the wire harnesses if metallic transitions are not installed, which terminates the repetitive inspections. This amendment is prompted by a report of chafing and damage to a wire harness of a tail tank fuel transfer pump. The actions specified by this AD are intended to prevent wire chafing and damage, which could result in an inoperative fuel transfer pump and/or an increased risk of a fire or explosion from a fuel leak.
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.
