Airworthiness directives › 97-07-12
AD 97-07-12 Airworthiness Directives; McDonnell Douglas Model MD-11 and DC-10 Series Airplanes, and KC-10A (Military) Airplanes
Models named: MD-11 series, DC-10 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model MD-11 series airplanes as listed in McDonnell Douglas MD-11 Alert Service Bulletin A26-16, dated November 22, 1993; and Model DC-10 series airplanes and KC-10A (military) airplanes as listed in McDonnell Douglas DC-10/KC-10A Alert Service Bulletin A26-46, dated December 6, 1993; certificated in any category. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been otherwise modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (f) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
Compliance
Required as indicated, unless accomplished previously. To prevent the wrong engine-driven generator from being shut down unnecessarily in the event of an engine fire warning, accomplish the following: (a) As of January 7, 1994 (the effective date of AD 93-25-09, amendment 39-8775), prior to further flight following any maintenance performed on the fire extinguishing handle system, perform a functional test to verify proper installation of the electrical connectors to the engine generator and fire bell shutoff switches in accordance with the Accomplishment Instructions of McDonnell Douglas MD-11 Alert Service Bulletin A26-16, dated November 22, 1993 (for Model MD-11 series airplanes); or McDonnell Douglas DC-10/KC-10A Alert Service Bulletin A26-46, dated December 6, 1993 [for Model DC-10 series airplanes, and KC-10A (military) airplanes]; as applicable. (b) If the electrical connectors are found to be properly installed, repeat the functional test thereafter prior to further flight following any maintenance performed on the fire extinguishing handle system, until the requirements of paragraph (d) of this AD are accomplished. (c) If the electrical connectors are found to be improperly installed, prior to further flight, correct the wiring installation and repeat the functional test, in accordance with the Accomplishment Instructions of McDonnell Douglas MD-11 Alert Service Bulletin A26-16, dated November 22, 1993 (for Model MD-11 series airplanes); or McDonnell Douglas DC-10/KC-10A Alert Service Bulletin A26-46, dated December 6, 1993 [for Model DC-10 series airplanes, and KC-10A (military) airplanes]; as applicable. Thereafter, repeat the functional test prior to further flight following any maintenance performed on the fire extinguishing handle system, until the requirements of paragraph (d) of this AD are accomplished. (d) Except as provided by paragraph (e) of this AD: Within 24 months after the effective date of this AD, install tethers on the engine generator and fire bell shutoff system and firex bottle electrical connectors, in accordance with McDonnell Douglas Service Bulletin MD11-26-018, dated August 24, 1995 (for Model MD-11 series airplanes); or McDonnell Douglas Service Bulletin DC10-26-047, Revision 1, dated August 22, 1996 [for Model DC-10 series airplanes and KC-10A (military) airplanes]; as applicable. Accomplishment of this installation constitutes terminating action for the functional tests required by this AD. (e) For those airplanes on which a functional test has been accomplished in accordance with either AD 93-25-09 R1, amendment 39- 9070; or paragraph (a), (b), or (c) of this AD: The functional test specified in the ``Test'' procedures in paragraph 3.B. of the Accomplishment Instructions of McDonnell Douglas Service Bulletin MD11-26-018, dated August 24, 1995 (for Model MD-11 series airplanes); or McDonnell Douglas Service Bulletin DC10-26-047, Revision 1, dated August 22, 1996 [for Model DC-10 series airplanes and KC-10A (military) airplanes] need not be performed. (f) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Los Angeles ACO. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles ACO. (g) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (h) The functional tests shall be done in accordance with McDonnell Douglas MD-11 Alert Service Bulletin A26-16, dated November 22, 1993 (for Model MD-11 series airplanes); or McDonnell Douglas DC-10/KC-10A Alert Service Bulletin A26-46, dated December 6, 1993 [for Model DC-10 series airplanes, and KC-10A (military) airplanes]; as applicable. This incorporation by reference was approved previously by the Director of the Federal Register, in accordance with 5 U.S.C. 552(a) and 1 CFR part 51, as of November 29, 1994 (59 FR 56383, November 14, 1994). The installation shall be done in accordance with McDonnell Douglas Service Bulletin MD11-26- 018, dated August 24, 1995 (for Model MD-11 series airplanes); or McDonnell Douglas Service Bulletin DC10-26-047, Revision 1, dated August 22, 1996 [for Model DC-10 series airplanes and KC-10A (military) airplanes]; as applicable. This incorporation [[Page 16667]] by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Technical Publications Business Administration, Department C1-L51 (2-60). Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Transport Airplane Directorate, Los Angeles Aircraft Certification Office, 3960 Paramount Boulevard, Lakewood, California; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (i) This amendment becomes effective on May 13, 1997. Issued in Renton, Washington, on March 27, 1997. S.R. Miller, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 97-8424 Filed 4-7-97; 8:45 am] BILLING CODE 4910-13-U
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1