AD 2006-17-11 Airworthiness Directives; Boeing Model 767-400ER Series Airplanes and Model 777-200 and -300 Series Airplanes

This AD applies to the airplanes listed in Table 1 of this AD, certificated in any category: Table 1.—Applicability Boeing Model— As Identified in— 767-400ER series airplanes Boeing Special Attention Service Bulletin 767-26-0125, dated January 22, 2004. 777-200 and -300 series airplanes Boeing Service Bulletin 777-26-0034, Revision 1, dated July 1, 2004.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Service Bulletin References (f) The term “service bulletin,” as used in this AD, means the Accomplishment Instructions of the service bulletins identified in Table 2 of this AD, as applicable: Table 2.—Service Bulletin References For model— Boeing— For the— 767-400ER series airplanes Special Attention Service Bulletin 767-26-0124, Revision 1, dated April 13, 2006 Test specified in paragraph (g) of this AD.   Special Attention Service Bulletin 767-26-0125, dated January 22, 2004 Replacement specified in paragraph (h) of this AD. 777-200 and -300 series airplanes Special Attention Service Bulletin 777-26-0033, dated December 5, 2002 Test specified in paragraph (g) of this AD.   Service Bulletin 777-26-0034, Revision 1, dated July 1, 2004 Replacement specified in paragraph (h) of this AD. Repetitive Testing of Cargo Fire Extinguishing Bottles (g) For all Model 767-400ER series airplanes; and the Model 777-200 and -300 series airplanes identified in Boeing Special Attention Service Bulletin 777-26-0033, dated December 5, 2002: Within 18 months or 6,000 flight hours after the effective date of this AD, whichever is first, test the fill and safety fittings of the cargo fire extinguishing bottles in the forward cargo compartment for leaks, in accordance with the applicable service bulletin. Repeat the test thereafter at intervals not to exceed 18 months or 6,000 flight hours, whichever is first, in accordance with the service bulletin, until the replacement required by paragraph (h) of this AD is accomplished. (1) If no leak is found or if the leak rate is below the calibrated rate specified in the service bulletin, before further flight, apply the corrosion inhibiting compound (CIC) to the safety disc inside the fill fitting and reidentify the cargo fire extinguishing bottle, in accordance with the applicable service bulletin. (2) If any leak above the calibrated rate specified in the service bulletin is found, before further flight, replace and reidentify the cargo fire extinguishing bottle with new or reworked fire extinguishing bottles, in accordance with the applicable service bulletin; except where the service bulletin specifies that the replacement may be accomplished according to an operator's “equivalent procedure,” replace in accordance with a method approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA. Chapter 26-23-02/401 of the Boeing 767 Aircraft Maintenance Manual (AMM) or Chapter 26-23-01/401 of the Boeing 777 AMM, as applicable, is one approved method. Note 1: The Boeing service bulletins listed in Table 3 of this AD refer to certain Kidde Aerospace service bulletins, as applicable, as additional sources of service information for testing and reidentifying the cargo fire extinguishing bottles. Table 3.—Additional Service Information for Testing For model— Boeing Special Attention Service Bulletin— Refers to Kidde Aerospace Service Bulletin— 767-400ER series airplanes 767-26-0124, Revision 1, dated April 13, 2006 473876-26-454. Revision 1, dated March 12, 2003, is the latest version of this service bulletin. 777-200 and -300 series airplanes 777-26-0033, dated December 5, 2002 473474-26-442. Revision 1, dated March 12, 2003, is the latest version of this service bulletin.   473475-26-443. Revision 1, dated March 12, 2003, is the latest version of this service bulletin.   473854-26-444. Revision 1, dated March 12, 2003, is the latest version of this service bulletin.   473876-26-445. Revision 1, dated March 12, 2003, is the latest version of this service bulletin. Replacement of Cargo Fire Extinguishing Bottles (h) For all airplanes: Within 60 months after the effective date of this AD, replace the existing cargo fire extinguishing bottles with reworked fire extinguishing bottles, in accordance with the applicable service bulletin. Replacement of a cargo fire extinguishing bottle with a reworked fire extinguishing bottle terminates the repetitive tests and CIC applications required by paragraph (g) of this AD for that fire extinguishing bottle only. Note 2: The Boeing service bulletins listed in Table 4 of this AD refer to certain Kidde Aerospace service bulletins, as applicable, as additional sources of service information for reworking the cargo fire extinguishing bottles. Table 4.—Additional Service Information for Replacement For model— Boeing— Refers to Kidde Aerospace Service Bulletin— 767-400ER series airplanes Special Attention Service Bulletin 767-26-0125, dated January 22, 2004 473876-26-453, dated January 22, 2004. 777-200 and -300 series airplanes Service Bulletin 777-26-0034, Revision 1, dated July 1, 2004 473474-26-450, dated January 22, 2004.   473475-26-451, dated January 22, 2004.   473854-26-452, dated January 22, 2004.   473876-26-453, dated January 22, 2004. Parts Installation (i) For all airplanes: As of the effective date of this AD, no person may install a cargo fire extinguishing bottle, part numbers (P/Ns) 473474-1 and -2, P/Ns 473475-1 and -2,P/Ns 473854-1 and -2, or P/Ns 473876-1 and -2, on any airplane, unless the initial test required by paragraph (g) of this AD is accomplished. Credit for Previous Service Bulletins (j) For all Model 777-200 series airplanes; and Model 777-300 series airplanes identified as Group 2 in Boeing Special Attention Service Bulletin 777-26-0034, dated January 22, 2004: Actions done before the effective date of this AD in accordance with Boeing Special Attention Service Bulletin 777-26-0034, dated January 22, 2004, are acceptable for compliance with the corresponding requirements of this AD. (k) For all Model 767-400ER series airplanes: Actions done before the effective date of this AD in accordance with Boeing Special Attention Service Bulletin 767-26-0124, dated December 5, 2002, are acceptable for compliance with the corresponding requirements of this AD. Alternative Methods of Compliance (AMOCs) (l)(1) The Manager, Seattle ACO, 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 to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. Material Incorporated by Reference (m) You must use the service information in Table 5 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 Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-2207, for a copy of this service information. You may review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street, SW., Room PL-401, Nassif Building, Washington, DC; on the Internet at http://dms.dot.gov ; or at 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 5.—Material Incorporated by Reference Service Bulletin Revision level Date Boeing Service Bulletin 777-26-0034 1 July 1, 2004. Boeing Special Attention Service Bulletin 767-26-0124 1 April 13, 2006. Boeing Special Attention Service Bulletin 767-26-0125 Original January 22, 2004. Boeing Special Attention Service Bulletin 777-26-0033 Original December 5, 2002. Issued in Renton, Washington, on August 10, 2006. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E6-13825 Filed 8-22-06; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by failure of the safety fittings for the cargo fire extinguishing bottles. We are issuing this AD to prevent failure of the safety fittings for the cargo fire extinguishing bottles due to corrosion, which could result in leakage of extinguishing agent. If a fire occurs in the cargo bay, the cargo fire extinguishing bottles could have less than enough extinguishing agent to control a fire.