AD 2005-06-03 Airworthiness Directives; McDonnell Douglas Model MD-90-30 Airplanes

Models named: MD-90-30. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to all Model MD-90-30 airplanes, certificated in any category.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Replacement (f) Within 18 months after the effective date of this AD, replace existing fluorescent light lamp holders manufactured by Page Aerospace Limited, part numbers (P/Ns) C779-02-001 and C779-09-001, with improved parts manufactured by Bruce Industries Incorporated, P/Ns BV04055-01-12 and BV04055N-01-12, as specified in Table 1 of this AD. Table 1.—Replacement of Lamp Holders Replace lamp holders in these locations— In accordance with this service information— Which refers to this service information as an additional source of replacement instructions— (1) Ceiling panels and life raft ceiling support housings Boeing Alert Service Bulletin MD90-33A012, Revision 3, dated January 14, 2004 C & D Aerospace Alert Service Bulletin 59406XX-25A01; currently at Revision 4, dated July 31, 2003. (2) Sidewall behind the overhead stowage compartments in the main cabin Boeing Alert Service Bulletin MD90-33A013, dated November 29, 2001 C & D Aerospace Alert Service Bulletin 51310XX-25A01; currently at Revision 5, dated March 30, 2004. Parts Installation (g) As of the effective date of this AD, no person may install a fluorescent light lamp holder manufactured by Page Aerospace Limited and having P/N C779-02-001 or C779-09-001, in the locations specified in this AD, on any airplane. Replacements Accomplished Per Previous Issues of Service Bulletin (h) Replacements accomplished before the effective date of this AD per the Accomplishment Instructions of Boeing Alert Service Bulletin MD90-33A012, dated March 28, 2001; Revision 01, dated September 17, 2001; or Revision 02, dated January 17, 2002; are considered acceptable for compliance with paragraph (f) of this AD. Alternative Methods of Compliance (AMOCs) (i) 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. Material Incorporated by Reference (j) You must use the service information that is specified in Table 2 of this AD to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approves the incorporation by reference of those documents in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. For copies of the service information, 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 information on the availability of this material at the National Archives and Records Administration (NARA), call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. You may view the AD docket at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., room PL-401, Nassif Building, Washington, DC. Table 2.—Material Incorporated by Reference Service bulletin Revision level Date Boeing Alert Service Bulletin MD90-33A012 3 January 14, 2004. Boeing Alert Service Bulletin MD90-33A013 Original November 29, 2001. Issued in Renton, Washington, on March 7, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05-5016 Filed 3-15-05; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by reports of failure of fluorescent light lamp holders in the main cabin. We are issuing this AD to prevent chafing of the lamp holder power wire against the mounting bracket, and moisture intrusion into the lamp holders, which could result in failure of the lamp holders and consequent smoke and fire in the airplane cabin.