AD 2008-02-12 Airworthiness Directives; McDonnell Douglas Model 717-200 Airplanes

Models named: 717-200. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to McDonnell Douglas Model 717-200 airplanes, certificated in any category; as identified in Boeing Service Bulletin 717-28-0007, Revision 1, dated September 23, 2003.

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 (f) Within 78 months after the effective date of this AD, modify the conduit for the forward fuel boost pump of the center fuel tank, by accomplishing all of the actions specified in Boeing Service Bulletin 717-28-0007, Revision 1, dated September 23, 2003. Credit for Actions Done According to Previous Issue of Service Bulletin (g) Actions done before the effective date of this AD in accordance with Boeing Service Bulletin 717-28-0007, dated August 22, 2002, are acceptable for compliance with the requirements of paragraph (f) of this AD provided that a leak check of the conduit is accomplished in accordance with Boeing 717 Airplane Maintenance Manual (AMM) Task 28-22-28-700-801, “Leak Test of the Fuel Pump Electrical Conduit.” Alternative Methods of Compliance (AMOCs) (h)(1) The Manager, Los Angeles Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. (2) To request a different method of compliance or a different compliance time for this AD, follow the procedures in 14 CFR 39.19. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. Material Incorporated by Reference (i) You must use Boeing Service Bulletin 717-28-0007, Revision 1, dated September 23, 2003, to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Boeing Commercial Airplanes, Long Beach Division, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Data and Service Management, Dept. C1-L5A (D800-0024). (3) You may review copies of the service information incorporated by reference at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; 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 . Issued in Renton, Washington, on January 14, 2008. Stephen P. Boyd, Assistant Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8-971 Filed 1-23-08; 8:45 am] BILLING CODE 4910-13-P

This AD results from a finding that a potential chafing condition exists in the volute assembly of the forward boost pump for the center fuel tank. We are issuing this AD to prevent chafing of the forward boost pump wiring that could lead to arcing to the inside of the 45-degree angle fitting, which, in combination with flammable fuel vapors, could result in a fuel tank explosion and consequent loss of the airplane.