Airworthiness Directive · Amendment 39-14225 · McDonnell Douglas Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, and MD-10-30F Airplanes; and Model MD-11 and MD-11F Airplanes
McDonnell Douglas Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, and MD-10-30F Airplanes; and Model MD-11 and MD-11F Airplanes
This AD applies to McDonnell Douglas Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, and MD-10-30F airplanes as identified in Boeing Alert Service Bulletin DC10-26A065, Revision 1, dated May 20, 2005; and Model MD-11 and MD-11F airplanes as identified in Boeing Alert Service Bulletin MD11-26A060, Revision 1, dated May 10, 2005; certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for certain McDonnell Douglas airplanes. This AD requires a general visual inspection for damage to the Firex discharge pipes and wye assembly of the fire extinguishing system of the number 2 engine; and corrective and other specified actions, as applicable. This AD results from reports of freezing damage to the Firex discharge pipes and wye assembly of the number 2 engine, and one report of a level 1 ENG FIRE AGENT LO alert during flight. We are issuing this AD to prevent accumulation of water in the discharge pipes and possible consequent freezing damage to the discharge pipes and wye assembly, which could lead to failure of the fire extinguishing system during a fire in the number 2 engine.
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 18 months after the effective date of this AD, perform a general visual inspection for damage to the Firex discharge pipes and wye assembly of the fire extinguishing system of the number 2 engine, and corrective and other specified actions; by doing all the actions specified in the Accomplishment Instructions of Boeing Alert Service Bulletin MD11-26A060, Revision 1, dated May 10, 2005 (for Model M-D11 and MD-11F airplanes); or Boeing Alert Service Bulletin DC10-26A065, Revision 1, dated May 20, 2005 (for Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, and MD-10-30F airplanes); as applicable. Do the corrective and other specified actions, as applicable, prior to further flight.
Note 1: For the purposes of this AD, a general visual inspection is: “A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure, or irregularity. This level of inspection is made from within touching distance unless otherwise specified. A mirror may be necessary to ensure visual access to all surfaces in the inspection area. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or droplight and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.”
Actions accomplished before the effective date of this AD in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin MD11-26A060, dated July 20, 2004; or Boeing Alert Service Bulletin DC10-26A065, dated August 19, 2004; as applicable; are acceptable for compliance with the corresponding actions required by this AD.
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.
