2007-06-13: Electro-pneumatic locking bar devices (TRAS lock systems)

2007-06-13 Airbus: Amendment 39-14994. Docket No. FAA-2005-22036; Directorate Identifier 2005-NM-009-AD. Effective Date (a) This AD becomes effective April 20, 2007. Affected ADs (b) None. Applicability (c) This AD applies to Airbus series airplanes, certificated in any category, as identified in the service bulletins listed in Table 1 of this AD; except for those airplanes on which the following applicable modifications have been incorporated in production: Airbus Modification 12348, 12349, 12350, 12514, and 12511. Table 1.--Applicability Airplane Models General Electric Engine Model Airbus Service Bulletin and Revision Date A300 B4-605R and F4-605R airplanes CF6-80C2 A300-78-6024, Revision 01 April 22, 2005 A300 B4-605R and F4-605R airplanes CF6-80C2 A300-78-6021, Revision 02 June 8, 2005 A300 B4-601, B4-603, B4-605R, and C4-605R Variant F airplanes CF6-80C2 A300-78-6025, Revision 01 April 22, 2005 A300 B4-601, B4-603, B4-605R, and C4-605R Variant F airplanes CF6-80C2 A300-78-6022, Revision 02 June 8, 2005 A310 airplanes CF6-80C2 A310-78-2023, Revision 01 April 22, 2005 A310 airplanes CF6-80C2 A310-78-2022, Revision 02 July 18, 2006 A310 airplanes CF6-80A3 A310-78-2024, Revision 01 June 13, 2005 A310 airplanes CF6-80A3 A310-78-2025, Revision 01 April 22, 2005 Note 1: We have provided a list of corresponding modifications with the applicable Airbus service bulletins in Table 2 of this AD for ease of reference for the operators. Table 2.--Corresponding Modifications Airbus Service Bulletin Modifications A310-78-2022 and A300-78-6022 12348, 12350, 12351, and 12514 A310-78-2023 and A300-78-6025 12512 A310-78-2024 12552 and 12553 A310-78-2025 12564 A300-78-6021 12348, 12349, 12350, and 12514 A300-78-6024 12511 Unsafe Condition (d) This AD results from the manufacturer's reassessment of the thrust reverser systems in the Airbus airplane models specified in Table 1 of this AD, which showed that the thrust reverser could deploy in flight under certain conditions. We are issuing this AD to prevent inadvertent deployment of thrust reversers in flight, which could result in reduced controllability of the airplane. Compliance (e) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Installing TRAS Lock Systems and Accomplishing Modifications (f) For airplanes identified in the service bulletins specified in Table 3 of this AD: Within 36 months after the effective date of this AD, install the electro-pneumatic locking bar devices (TRAS Lock Systems) in the thrust reverser system of the nacelles, in accordance with the Accomplishment Instructions of the applicable service bulletin. Table 3.--Installing TRAS Lock Systems Airplane Models General Electric Engine Model Airbus Service Bulletin and Revision Date A300 B4-605R and F4-605R airplanes CF6-80C2 A300-78-6024, Revision 01 April 22, 2005 A300 B4-601, B4-603, B4-605R, and C4-605R Variant F airplanes CF6-80C2 A300-78-6025, Revision 01 April 22, 2005 A310 airplanes CF6-80C2 A310-78-2023, Revision 01 April 22, 2005 A310 airplanes CF6-80A3 A310-78-2025, Revision 01 April 22, 2005 Note 2: Airbus Service Bulletin A310-78-2025, Revision 01, dated April 22, 2005, references draft Goodrich Service Bulletin 71-065 as an additional source of service information. After the issuance of Airbus Service Bulletin A310-78-2025, the Goodrich service bulletin was reissued as Rohr Service Bulletin CF6-80A3-NAC-71-065, dated April 28, 2005. (g) For airplanes identified in the service bulletins specified in Table 4 of this AD: Prior to or concurrent with the accomplishment of the applicable service bulletin specified in paragraph (f) of this AD, accomplish all the modifications and actions related to an independent third line ofdefense on the thrust reversers, in accordance with the Accomplishment Instructions of the applicable service bulletin specified in Table 4 of this AD. Table 4.--Prior or Concurrent Accomplishment Airplane Models Airplanes Equipped with General Electric Engine Model Airbus Service Bulletin and Revision Date A300 B4-605R and F4-605R airplanes CF6-80C2 (with full authority digital engine control (FADEC)) A300-78-6021, Revision 02, including Appendices 01 and 02 June 8, 2005 A300 B4-601, B4-603, B4-605R, and C4-605R Variant F airplanes CF6-80C2 (without FADEC) A300-78-6022, Revision 02, including Appendices 01 and 02 June 8, 2005 A310 airplanes CF6-80C2 (without FADEC) A310-78-2022 Revision 02, including Appendices 01 and 02 June 18, 2006 A310 airplanes CF6-80A3 A310-78-2024 Revision 01, including Appendices 01 and 02 June 13, 2005 Actions Accomplished According to Previous Issues of Service Bulletins (h) Actions accomplished in accordance with the following service bulletins are acceptable for compliance with the requirements of this AD, as applicable, if done before the effective date of this AD: Table 5.--Service Bulletins Accomplished Previously Airbus Service Bulletin Revision Level Date A300-78-6021 Original April 8, 2003 A300-78-6021 01 October 7, 2003 A300-78-6022 01 January 7, 2003 A300-78-6024 Original October 7, 2003 A300-78-6025 Original October 7, 2003 A310-78-2022 Original January 7, 2003 A310-78-2022 01 June 8, 2005 A310-78-2023 Original October 7, 2003 A310-78-2024 Original October 15, 2003 A310-78-2025 Original July 23, 2004 Alternative Methods of Compliance (AMOCs) (i)(1) The Manager, International Branch, ANM-116, Transport Airplane Directorate, 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 towhich the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. Related Information (j) French airworthiness directive F-2004-165, dated October 13, 2004, also addresses the subject of this AD. Material Incorporated by Reference (k) You must use the applicable Airbus service bulletins specified in Table 6 of this AD 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 these documents in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Contact Airbus, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France, for a copy of this service information. You may review copies 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/cfr/ibr-locations.html . Table 6.--Material Incorporated by Reference Airbus Service Bulletin Revision Level Date A300-78-6021, including Appendices 01 and 02 02 June 8, 2005 A300-78-6022, including Appendices 01 and 02 02 June 8, 2005 A300-78-6024 01 April 22, 2005 A300-78-6025 01 April 22, 2005 A310-78-2022, including Appendices 01 and 02 02 July 18, 2006 A310-78-2023 01 April 22, 2005 A310-78-2024, including Appendices 01 and 02 01 June 13, 2005 A310-78-2025 01 April 22, 2005