AD 2007-04-06 Airworthiness Directives; McDonnell Douglas Model DC-8-62, DC-8-63, DC-8-62F, and DC-8-63F Airplanes

Models named: DC-8-62, DC-8-63, DC-8-62F, DC-8-63F. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to McDonnell Douglas Model DC-8-62 and DC-8-63 airplanes and Model DC-8-62F and DC-8-63F airplanes, certificated in any category; as identified in McDonnell Douglas DC-8 Service Bulletin 78-95, Revision 2, dated March 10, 1971.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Modification of Engine Thrust Brake Circuitry (f) Within 27 months after the effective date of this AD, do the applicable action specified in paragraph (f)(1) or (f)(2) of this AD, by accomplishing all of the applicable actions specified in the Accomplishment Instructions of McDonnell Douglas DC-8 Service Bulletin 78-95, Revision 2, dated March 10, 1971; or Revision 1, dated December 29, 1970. (1) Revise the wiring for the engine thrust brake circuit and indicating circuit, and do all other specified actions before further flight after revising the wiring. (2) Reroute the wiring at plug P1-1762A on the electrical power center generator control panel. Alternative Methods of Compliance (AMOCs) (g)(1) The Manager, Los Angeles Aircraft Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. Material Incorporated by Reference (h) You must use McDonnell Douglas DC-8 Service Bulletin 78-95, Revision 2, dated March 10, 1971; or McDonnell Douglas DC-8 Service Bulletin 78-95, Revision 1, dated December 29, 1970; to perform the actions that are required by this AD, unless the AD specifies otherwise. McDonnell Douglas DC-8 Service Bulletin 78-95, Revision 2, dated March 10, 1971, contains the following effective pages:   Page number Revision level shown on page Date shown on page 1, 2, 16, 17 2 March 10, 1971. 3-15, 18-23 1 December 29, 1970. The Director of the Federal Register approved the incorporation by reference of these documents in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Boeing Commercial Airplanes, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and Service Management, Dept. C1-L5A (D800-0024), for a copy of this service information. You may review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Room PL-401, Nassif Building, Washington, DC; on the Internet at http://dms.dot.gov; or at the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html . Issued in Renton, Washington, on February 2, 2007. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7-2416 Filed 2-13-07; 8:45 am] BILLING CODE 4910-13-P

This AD results from the determination that the thrust reverser systems on McDonnell Douglas Model DC-8-62, DC-8-63, DC-8-62F, and DC-8-63F airplanes do not adequately preclude inadvertent deployment of the thrust reversers. We are issuing this AD to prevent inadvertent deployment of the thrust reversers during takeoff or landing, which could result in loss of control of the airplane.