Airworthiness Directive · Amendment 39-13794 · McDonnell Douglas Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F, DC-10-30F (KC10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, and MD-10-30F Airplanes
McDonnell Douglas Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F, DC-10-30F (KC10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, and MD-10-30F Airplanes
Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F, DC-10-30F (KC10A and KDC-10), DC-10-40, DC-10-40F, MD-10-10F, and MD-10-30F airplanes; as listed in Boeing Alert Service Bulletin DC10-24A149, Revision 04, dated March 26, 2003; certificated in any category.
This amendment supersedes an existing airworthiness directive (AD), applicable to McDonnell Douglas transport category airplanes listed above, that currently requires a one-time detailed inspection to determine if wire segments of the wire bundle routed through the feed- through on the aft side of the flight engineer's station are damaged or chafed, and corrective actions if necessary. That AD also requires revising the wire bundle support clamp installation at the flight engineer's station. For certain airplanes, this amendment requires a new revision of the wire bundle support clamp installation, and modification of a certain wire bundle. This amendment also reduces the applicability in the existing AD. The actions specified by this AD are intended to prevent chafing of the wire bundle located behind the flight engineer's panel caused by the wire bundle coming in contact with the lower edge of the feed-through, and consequent electrical arcing, which could result in smoke and fire in the cockpit. This action is intended to address the identified unsafe condition.
To prevent chafing of the wire bundle located behind the flight engineer's panel caused by the wire bundle coming in contact with the lower edge of the feed-through, and consequent electrical arcing, which could result in smoke and fire in the cockpit, accomplish the following:
(a) Within 1 year after June 21, 2000 (the effective date of AD 2000-10-03, amendment 39-11727), perform a one-time detailed inspection to determine if the wire segments of the wire bundle routed through the feed-through on the aft side of the flight engineer's station are damaged or chafed, in accordance with McDonnell Douglas Alert Service Bulletin DC10-24A149, Revision 01, dated July 28, 1999; or Boeing Alert Service Bulletin DC10-24A149, Revision 02, dated April 5, 2001; Revision 03, dated September 19, 2002; or Revision 04, dated March 26, 2003. If any damaged or chafed wire is found, prior to further flight, repair in accordance with the alert service bulletin.
Note 1: For the purposes of this AD, a detailed inspection is defined as: “An intensive visual examination of a specific structural area, system, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at intensity deemed appropriate by the inspector. Inspection aids such as mirror, magnifying lenses, etc. may be used. Surface cleaning and elaborate access procedures may be required.”
(b) Within 1 year after January 16, 2002 (the effective date of AD 2001-24-21, amendment 39-12538), revise the wire bundle support clamp installation at the flight engineer's station, in accordance with Boeing Alert Service Bulletin DC10-24A149, Revision 02, dated April 5, 2001.
(c) Within 18 months after the effective date of this AD, do the applicable actions specified in paragraph (c)(1), (c)(2), or (c)(3) of this AD, in accordance with Boeing Alert Service Bulletin DC10-24A149, Revision 04, dated March 26, 2003.
(1) For Group 1 airplanes, as defined in Boeing Alert Service Bulletin DC10-24A149, Revision 04, dated March 26, 2003: Revise the wire bundle support clamp installation at the flight engineer's station.
(2) For Group 2 airplanes, as defined in Boeing Alert Service Bulletin DC10-24A149, Revision 04, dated March 26, 2003: Revise the wire bundle support clamp installation at the flight engineer's station.
(3) For Group 3 airplanes, as defined in Boeing Alert Service Bulletin DC10-24A149, Revision 04, dated March 26, 2003: Revise the wire bundle support clamp installation at the first observer's station.
(d) For Group 4 airplanes, as defined in Boeing Alert Service Bulletin DC10-24A149, Revision 04, dated March 26, 2003: Within 18 months after the effective date of this AD, modify the wire bundle in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin DC10-24A149, Revision 04, dated March 26, 2003.
(e) In accordance with 14 CFR 39.19, the Manager, Los Angeles Aircraft Certification Office, FAA, is authorized to approve alternative methods of compliance for this AD.
(f) The actions must be done in accordance with the applicable service bulletin listed in Table 1 of this AD.
| Service information | Revision level | Date |
|---|---|---|
| McDonnell Douglas Alert Service Bulletin DC10-24A149 | 01 | July 28, 1999. |
| Boeing Alert Service Bulletin DC10-24A149 | 02 | April 5, 2001. |
| Boeing Alert Service Bulletin DC10-24A149 | 03 | September 19, 2002. |
| Boeing Alert Service Bulletin DC10-24A149 | 04 | March 26, 2003. |
(1) The incorporation by reference of Boeing Alert Service Bulletin DC10-24A149, Revision 03, dated September 19, 2002; and Boeing Alert Service Bulletin DC10-24A149, Revision 04, dated March 26, 2003; is approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51.
(2) The incorporation by reference of Boeing Alert Service Bulletin DC10-24A149, Revision 02, dated April 5, 2001, was approved previously by the Director of the Federal Register as of January 16, 2002 (66 FR 64121, December 12, 2001).
(3) The incorporation by reference of McDonnell Douglas Alert Service Bulletin DC10-24A149, Revision 01, dated July 28, 1999, was approved previously by the Director of the Federal Register as of June 21, 2000 (65 FR 31253, May 17, 2000).
(4) Copies may be obtained from Boeing Commercial Aircraft Group, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and Service Management, Dept. C1-L5A (D800-0024). Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_ regulations/ibr_locations.html.
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.
