AD 2005-15-09 Airworthiness Directives; Airbus Model A300 B2 and B4 Series Airplanes; Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model A300 C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes); and Model A310-200 and -300 Series Airplanes

Models named: A300 B2-1A, B2-1C, B2K-3C, B4-2C, B4-103, B4-203. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Airbus Model A300 B2-1A, B2-1C, B2K-3C, B4-2C, B4-103, and B4-203 airplanes; A300 B4-601, B4-603, B4-620, B4-622, B4-605R, B4-622R, F4-605R, F4-622R, and C4-605R Variant F airplanes; and A310-203, -204, -221, -222, -304, -322, -324, and -325 airplanes; certificated in any category; except those on which both Airbus Modifications 5946 and 8057 were done during production.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Modification of Thermal Insulation and Fuselage Drainage Systems (f) Within 22 months after the effective date of this AD, modify the thermal insulation system of applicable fuselage frames and modify the fuselage drainage system, by doing all actions in the Accomplishment Instructions of the applicable service bulletins specified in Table 1 of this AD. Table 1.—Relevant Service Bulletins For Airbus models— Modify the thermal insulation system according to Airbus Service Bulletin— And modify the fuselage drainage system according to Airbus Service Bulletin— A300 B2-1A, B2-1C, B2K-3C, B4-2C, B4-103, and B4-203 A300-21-0116, Revision 03, dated January 29, 2004 A300-53-0201, Revision 05, dated July 15, 2004. A300 B4-601, B4-603, B4-620, B4-622, B4-605R, B4-622R, F4-605R, F4-622R, and C4-605R Variant F A300-21-6025, Revision 02, dated January 29, 2004 A300-53-6008, Revision 05, dated July 15, 2004. A310-203, -204, -221, -222, -304, -322, -324, and -325 A310-21-2041, Revision 03, dated January 29, 2004 A300-53-2027, Revision 04, dated July 15, 2004. Modifications Accomplished According to Previous Issues of Service Bulletins (g) Modifications accomplished before the effective date of this AD according to the service bulletins listed in Table 2 are considered acceptable for compliance with the corresponding action specified in paragraph (f) of this AD. Table 2.—Additional Service Bulletins Models Airbus Service Bulletin Revision level Date A300 B2-1A, B2-1C, B2K-3C, B4-2C, B4-103, and B4-203 A300-21-116 1 March 24, 1992. A300 B2-1A, B2-1C, B2K-3C, B4-2C, B4-103, and B4-203 A300-21-0116 02 June 13, 2003. A300 B2-1A, B2-1C, B2K-3C, B4-2C, B4-103, and B4-203 A300-53-0201 04 May 2, 2003. A300 B4-601, B4-603, B4-620, B4-622, B4-605R, F4-605R, F4-622R, B4-622R, and C4-605R Variant F A300-21-6025 01 June 13, 2003. A300 B4-601, B4-603, B4-620, B4-622, B4-605R, F4-605R, F4-622R, B4-622R, and C4-605R Variant F A300-53-6008 02 August 10, 1989. A300 B4-601, B4-603, B4-620, B4-622, B4-605R, F4-605R, F4-622R, B4-622R, and C4-605R Variant F A300-53-6008 03 November 6, 1990. A300 B4-601, B4-603, B4-620, B4-622, B4-605R, F4-605R, F4-622R, B4-622R, and C4-605R Variant F A300-53-6008 04 April 28, 2003. A310-203, -204, -221, -222, -304, -322, -324, and -325 A310-21-2041 1 December 10, 1990. A310-203, -204, -221, -222, -304, -322, -324, and -325 A310-21-2041 02 June 13, 2003. A310-203, -204, -221, -222, -304, -322, -324, and -325 A310-53-2027 2 November 6, 1990. A310-203, -204, -221, -222, -304, -322, -324, and -325 A310-53-2027 03 May 2, 2003. Maintenance Program Revision (h) Within 90 days after doing the actions required by paragraph (f) of this AD, or within 90 days after the effective date of this AD, whichever is later: Incorporate into the FAA-approved maintenance inspection program repetitive detailed inspections for corrosion or cracking of fuselage structure from FR 38.2 to 39, and at FR 54, as applicable, as described in Airbus Maintenance Planning Document Task Numbers 538295-0603-1 (for Airbus Model A300 B2-1A, B2-1C, B2K-3C, B4-2C, B4-103, and B4-203 airplanes), and 531531-01-1 and 531533-01-1 (for Airbus Model A300 B4-601, B4-603, B4-620, B4-622, B4-605R, F4-605R, F4-622R, B4-622R, and C4-605R Variant F airplanes; and A310-203, -204, -221, -222, -304, -322, -324, and -325 airplanes). Then, thereafter, comply with the applicable requirements. Note 1: For the purposes of this AD, a detailed inspection is: “An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.” Alternative Methods of Compliance (AMOCs) (i) 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. Related Information (j) French airworthiness directive 2003-317(B), dated August 20, 2003, also addresses the subject of this AD. Material Incorporated by Reference (k) You must use the service information that is specified in Table 3 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 these documents in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get copies of the service information, contact Airbus, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France. To view the AD docket, go to the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW, room PL-401, Nassif Building, Washington, DC. To review copies of the service information, go to the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_ register/code_of_ federal_ regulations/ibr_locations.html. Table 3.—Material Incorporated by Reference Airbus Service Bulletin Revision level Date A300-21-0116 Revision 03 January 29, 2004. A300-21-6025 Revision 02 January 29, 2004. A300-53-0201 Revision 05 July 15, 2004. A300-53-6008 Revision 05 July 15, 2004. A310-21-2041 Revision 03 January 29, 2004. A310-53-2027 Revision 04 July 15, 2004. Issued in Renton, Washington, on July 13, 2005. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05-14397 Filed 7-25-05; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by reports of corrosion in the lower part of the pressure bulkhead at fuselage frames (FR) 39 and 54. We are issuing this AD to prevent accumulation of condensation in the insulation blankets of certain fuselage FRs, which could cause corrosion that could result in reduced structural integrity of the fuselage and consequent rapid decompression of the airplane.