AD 2008-17-13 Airworthiness Directives; Boeing Model 737-100, -200, -200C, -300, -400, and -500 Series Airplanes

Models named: 737-100, -200, -200C, -300, -400, -500 series. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Boeing Model 737-100, -200, -200C, -300, -400, and -500 series airplanes, certificated in any category; as identified in Boeing Alert Service Bulletin 737-38A1054, dated August 23, 2007.

Comply with this AD within the compliance times specified, unless already done. Replacement (f) Within 60 months after the effective date of this AD, replace the existing straight-to-90-degree hose assembly for the Lavatory “A” water supply with a new straight hose assembly and a separate 90-degree elbow fitting, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 737-38A1054, dated August 23, 2007. Parts Installation (g) As of the effective date of this AD, any hose assembly part having a part number identified in Table 1 of this AD must not be used in any location that is subject to the requirements of this AD. However, those parts may be used in other locations if not otherwise prohibited. Table 1—Spare Parts Prohibited for This AD Airplane group identified in Boeing Alert Service Bulletin 737-38A1054, dated August 23, 2007 Existing part number(s) 1 and 2 10-61998-430, AS4471-08-0401, or AS4471-08-0404. 3 10-61998-25 or 10-60871-125. 4 10-61998-31 or 10-60871-139. Alternative Methods of Compliance (AMOCs) (h)(1) The Manager, Seattle Aircraft Certification Office, FAA, ATTN: Marcia Smith, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 917-6484; fax (425) 917-6590; has the authority to approve AMOCs for this AD, if requested using 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 Alert Service Bulletin 737-38A1054, dated August 23, 2007, 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, P.O. Box 3707, Seattle, Washington 98124-2207. (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 August 6, 2008. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E8-22649 Filed 9-30-08; 8:45 am] BILLING CODE 4910-13-P

This AD results from a report of a separated hose assembly for the passenger water system. We are issuing this AD to prevent a water leak into the flight deck ceiling, which could result in an electrical short and possible loss of several functions essential to safe flight.