AD 2009-06-20 Airworthiness Directives; Boeing Model 757-200, 757-200PF, and 757-300 Series Airplanes

Models named: 757-200, 757-200PF, 757-300 series. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Boeing Model 757-200, 757-200PF, and 757-300 series airplanes, certificated in any category; as identified in Boeing Alert Service Bulletin 757-28A0085, Revision 2, dated December 11, 2007. Note 1: This AD requires revisions to certain operator maintenance documents to include new inspections. Compliance with these inspections is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by these inspections, the operator may not be able to accomplish the inspections described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance (AMOC) according to paragraph (m) of this AD. The request should include a description of changes to the required inspections that will ensure the continued operational safety of the airplane.

Comply with this AD within the compliance times specified, unless already done. Measurement, Installation, Modifications, Replacement, and Repair (f) For Groups 1 through 3 airplanes, as identified in Boeing Alert Service Bulletin 757-28A0085, Revision 2, dated December 11, 2007 (“the service bulletin”): Within 60 months after the effective date of this AD, do the measurement, installations, modifications, replacement, and applicable repair by accomplishing all the applicable actions specified in the Accomplishment Instructions of the service bulletin. Do the applicable repair before further flight. Measure and Repair (g) For Group 4 airplanes, as identified in Boeing Alert Service Bulletin 757-28A0085, Revision 2, dated December 11, 2007 (“the service bulletin”): Within 60 months after the effective date of this AD, do the measurements and applicable repair by accomplishing all the applicable actions specified in the Accomplishment Instructions of the service bulletin. Do the applicable repair before further flight. Airworthiness Limitations (AWLs) Revision for AWL No. 28-AWL-22 (h) Concurrently with accomplishing the actions required by paragraphs (f) and (g) of this AD, revise the AWLs section of the Instructions for Continued Airworthiness (ICA) by incorporating AWL No. 28-AWL-22 of Subsection G of Section 9, D622N001-9 Revision December 2008 of the Boeing 757 Maintenance Planning Data (MPD) Document. No Alternative Critical Design Configuration Control Limitations (CDCCLs) (i) After accomplishing the action specified in paragraph (h) of this AD, no alternative CDCCLs may be used unless the CDCCLs are approved as an AMOC in accordance with the procedures specified in paragraph (k) of this AD. Credit for Actions Done According to Previous Issues of the Service Information (j) Actions done before the effective date of this AD in accordance with Boeing Alert Service Bulletin 757-28A0085, Revision 1, dated April 16, 2007, are acceptable for compliance with the requirements of paragraphs (f) and (g) of this AD. (k) Actions done before the effective date of this AD in accordance with AWL No. 28-AWL-22 of Subsection G of Section 9 D622N001-9, Revision January 2007, Revision November 2007, or Revision March 2008 of the Boeing 757 Maintenance Planning Data (MPD) Document, are acceptable for compliance with the requirements of paragraph (h) of this AD. Terminating Action for AWLs Revision (l) Incorporating AWL No. 28-AWL-22 into the AWLs section of the ICA in accordance with paragraph (g)(3) of AD 2008-10-11, amendment 39-15517, terminates the action specified in paragraph (h) of this AD. Alternative Methods of Compliance (AMOCs) (m)(1) The Manager, Seattle Aircraft Certification Office, FAA, ATTN: Jen Pei, Aerospace Engineer, Systems and Equipment Branch, ANM-130S, FAA, Seattle ACO, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 917-6409; 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 (n) You must use Boeing Alert Service Bulletin 757-28A0085, Revision 2, dated December 11, 2007; and Section 9, D622N001-9 Revision December 2008 of the Boeing 757 Maintenance Planning Data (MPD) Document; as applicable; 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, P.O. Box 3707, MC 2H-65, Seattle, Washington 98124-2207; telephone 206-544-5000, extension 1, fax 206-766-5680; e-mail me.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 or 425-227-1152. (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 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 March 12, 2009. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E9-5962 Filed 3-23-09; 8:45 am] BILLING CODE 4910-13-P

This AD results from fuel system reviews conducted by the manufacturer. We are issuing this AD to prevent the center fuel tank densitometer from overheating and becoming a potential ignition source inside the fuel tank, which, in combination with flammable fuel vapors, could result in a center fuel tank explosion and consequent loss of the airplane.