AD 2011-01-16 Airworthiness Directives; The Boeing Company Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 Airplanes

This AD applies to The Boeing Company Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 airplanes; certificated in any category; as identified in Boeing Service Bulletin MD80-28-226, dated April 14, 2010. Note 1: The applicability of this AD is limited to airplanes on which switches are installed in accordance with McDonnell Douglas MD-80 Service Bulletin 28-054, dated April 8, 1991, or Revision 1, dated April 15, 1992; or McDonnell Douglas MD-80 Service Bulletin 28-058, dated April 8, 1991, Revision 1, dated August 2, 1991, or Revision 2, dated July 6, 1992; or production equivalent.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Fuse Installation (g) Within 60 months after the effective date of this AD, install fuel level float and pressure switch in-line fuses, and do applicable wiring changes, in the applicable locations specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD. Do the actions in accordance with the Accomplishment Instructions of Boeing Service Bulletin MD80-28-226, dated April 14, 2010, except as required by paragraph (h) of this AD. (1) For Groups 1 through 6: On the left, right, and center wing forward spars. (2) For Groups 7 and 8: On the left, right, and center wing forward spars, and aft auxiliary fuel tank. (3) For Groups 9 through 11: On the left, right, and center wing forward spars, forward auxiliary fuel tank, and aft auxiliary fuel tank. Exception to Service Bulletin Specifications (h) Paragraph 3.B.1. of Boeing Service Bulletin MD80-28-226, dated April 14, 2010, for Groups 1 through 11, refers to the Boeing MD80 Airplane Maintenance Manual (AMM) defueling procedure MD80 AMM 12-13-00. The correct reference is Boeing MD80 AMM 12-11-01. Alternative Methods of Compliance (AMOCs) (i)(1) The Manager, Los Angeles Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to Attn: Samuel Lee, Aerospace Engineer, Propulsion Branch, ANM-140L, FAA, Los Angeles ACO, 3960 Paramount Boulevard, Lakewood, California 90712-4137; telephone 562-627-5262; fax 562-627-5210. (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 principal maintenance inspector (PMI) or principal avionics inspector (PAI), as appropriate, or lacking a principal inspector, your local Flight Standards District Office. The AMOC approval letter must specifically reference this AD. Related Information (j) For more information about this AD, contact Samuel Lee, Aerospace Engineer, Propulsion Branch, ANM-140L, FAA, Los Angeles ACO, 3960 Paramount Boulevard, Lakewood, California 90712-4137; telephone 562-627-5262; fax 562-627-5210; e-mail samuel.lee@faa.gov . Material Incorporated by Reference (k) You must use Boeing Service Bulletin MD80-28-226, dated April 14, 2010, 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, Attention: Data & Services Management, 3855 Lakewood Boulevard, MC D800-0019, Long Beach, California 90846-0001; telephone 206-544-5000, extension 2; fax 206-766-5683; e-mail dse.boecom@boeing.com; Internet https://www.myboeingfleet.com . (3) You may review copies of the service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425-227-1221. (4) You may also review copies of the service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at an NARA facility, 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 December 27, 2010. Jeffrey E. Duven, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2010-33345 Filed 1-11-11; 8:45 am] BILLING CODE 4910-13-P

This AD results from fuel system reviews conducted by the manufacturer. The Federal Aviation Administration is issuing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane.