Airworthiness Directive · Amendment 39-12381 · McDonnell Douglas Model DC-10-10, -15, -30, and -30F (KC-10A Military) Series Airplanes, and Model MD-10-10F and -30F Series Airplanes
McDonnell Douglas Model DC-10-10, -15, -30, and -30F (KC-10A Military) Series Airplanes, and Model MD-10-10F and -30F Series Airplanes
The following airplanes, certificated in any category: Model Excluding airplanes 1. DC-10-30 and -30F (KC-10A military) On which bolt retainers have series airplanes, and MD-10-30F series been installed on the engine airplanes. mount per McDonnell Douglas DC- 10 Service Bulletin 71-133, Revision 6, dated June 30, 1992, or on which the modification specified in McDonnell Douglas Service Bulletin DC10-71-159, dated September 6, 1995, or Revision 01, dated July 28, 1997, has been performed. 2. DC-10-10 and -15 series airplanes, On which the modification and Model MD-10-10F series airplanes. specified in McDonnell Douglas Service Bulletin DC10-71-159, dated September 6, 1995, or Revision 01, dated July 28, 1997, has been done.
This amendment supersedes an existing airworthiness directive (AD), applicable to certain McDonnell Douglas Model DC-10-10, -15, -30, and -30F (KC-10A military) series airplanes, and Model MD-10-10F and - 30F series airplanes, that currently requires repetitive inspections to determine the condition of the lockwires on the forward engine mount bolts and correction of any discrepancies found. That AD also provides for optional terminating actions for the repetitive inspections. This amendment requires accomplishment of the previously optional terminating actions. This amendment is prompted by a report of discrepant forward engine mount bolts at the number 3 engine. The actions specified by this AD are intended to prevent broken lockwires, which could result in loosening of the engine mount bolts, and consequent separation of the engine from the airplane.
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.
