AD 2006-12-11 Airworthiness Directives; Boeing Model 737-600, -700, -700C, -800, and -900 Series Airplanes

Models named: 737-600, -700, -700C, -800, -900 series. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Boeing Model 737-600, -700, -700C, -800, and -900 series airplanes; certificated in any category; as listed in Boeing Special Attention Service Bulletin 737-28-1199, Revision 1, dated December 15, 2005.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Parts Replacement (f) Within 36 months after the effective date of this AD, replace the fuel shutoff valve wires and conduit assemblies in the left and right engine strut aft fairing areas with new fuel shutoff valve wires and conduit assemblies, by accomplishing all the actions in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-28-1199, Revision 1, dated December 15, 2005. Actions Accomplished Using Prior Version of Service Information (g) Actions accomplished before the effective date of this AD in accordance with Special Attention Service Bulletin 737-28-1199, dated September 9, 2004, are considered acceptable for compliance with the applicable action specified in this AD. Alternative Methods of Compliance (AMOCs) (h)(1) The Manager, Seattle 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 14 CFR 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 (i) You must use Boeing Special Attention Service Bulletin 737-28-1199, Revision 1, dated December 15, 2005, to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference of this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-2207, 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 May 31, 2006. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 06-5205 Filed 6-9-06; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by a report that an operator discovered many small chafe marks and exposed shield braid on fuel shutoff valve wires routed through a conduit in the wing. We are issuing this AD to prevent exposed wires that could provide an ignition source in a flammable leakage zone and possibly lead to an uncontrolled fire or explosion.