Airworthiness Directive · Amendment 39-12810 · McDonnell Douglas Model MD-11 and -11F Airplanes Equipped With United Technologies Pratt & Whitney Engines
McDonnell Douglas Model MD-11 and -11F Airplanes Equipped With United Technologies Pratt & Whitney Engines
Model MD-11 and -11F airplanes, certificated in any category; equipped with United Technologies Pratt & Whitney Model PW4460 or PW4462 engines, engine buildup units having neutral quick engine change, cum units 4 through 240 inclusive and serial numbers 5166001 through 5213003 inclusive.
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas Model MD-11 and -11F airplanes, that requires replacing the wire harness support bracket of the integrated drive generator (IDG) of the forward engine mounts with a new support bracket, and modifying the angle of the bracket near the oil filter. The actions specified by this AD are intended to prevent arcing of the IDG wire harness, which could result in smoke and/or fire in the area of the forward engine mount bolt retainer and/or fire detector responder. 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.
Aircraft
