AD 2009-10-12 Airworthiness Directives; Boeing Model 747 Airplanes

Models named: 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400F, 747SP, 747SR series. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to the airplanes listed in Table 1 of this AD, certificated in any category. Table 1—Applicability Boeing— As identified in— Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400F, 747SP, and 747SR series airplanes Boeing Service Bulletin 747-25-3279, Revision 4, dated December 11, 2008. Model 747-200B, -200C, -300, -400, and -400D series airplanes Boeing Service Bulletin 747-25-3232, dated July 6, 2000.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Restatement of Requirements of AD 2005-16-06 Modification for Upper Deck, Two-Piece Off-Wing, and Door 1, 2, 4, and 5 Slides and Slide/Rafts (g) For Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400F, 747SP, and 747SR series airplanes identified in Boeing Service Bulletin 747-25-3279, Revision 1, dated July 11, 2002: Within 36 months after September 13, 2005 (the effective date of AD 2005-16-06), do the actions specified in paragraphs (g)(1) and (g)(2) of this AD, as applicable, in accordance with Boeing Service Bulletin 747-25-3279, Revision 1, dated July 11, 2002; or Revision 4, dated December 11, 2008. After the effective date of this AD, only Revision 4 of Boeing Service Bulletin 747-25-3279 can be used to accomplish the requirements of this paragraph. (1) Modify the inflation systems of the upper deck and two-piece off-wing escape slides. (2) Modify the inflation systems of the door 1, 2, 4, and 5 escape slides/rafts, as applicable. Note 1: Boeing Service Bulletins 747-25-3279, Revision 1, dated July 11, 2002, and 747-25-3279, Revision 4, dated December 11, 2008; refer to Goodrich Service Bulletin 4A3037-25-327, dated November 30, 2001; Goodrich Service Bulletin 4A3056-25-331, dated December 21, 2001; and Goodrich Service Bulletin 4A3221-25-332, dated December 21, 2001; as additional sources of service information for doing the modifications. Modification for Single-Piece Off-Wing Ramp/Slides (h) For Model 747-200B, -200C, -300, -400, and -400D series airplanes identified in Boeing Service Bulletin 747-25-3232, dated July 6, 2000: Within 36 months after September 13, 2005, modify the inflation system of the single-piece off-wing escape ramps/slides, in accordance with Boeing Service Bulletin 747-25-3232, dated July 6, 2000. Note 2: Boeing Service Bulletin 747-25-3232, dated July 6, 2000, refers to Goodrich Service Bulletin 4A3416-25-305, Revision 2, dated October 15, 2001, as an additional source of service information for doing the modification. Parts Installation (i) For airplanes identified in paragraph (g) or (h) of this AD: As of September 13, 2005, unless the regulator assembly of the inflation system has been modified in accordance with paragraph (g) or (h) of this AD, as applicable, no person may install on any airplane a regulator assembly with any of the following part numbers (P/Ns): P/N 4A3047, -2, -3, -4, -5, -8, -9, or -10; P/N 4A3194-1, -2, -3, or -4; or P/N 4A3474-3. Credit for Previous Service Bulletin (j) Actions done before September 13, 2005, in accordance with Boeing Service Bulletin 747-25-3279, dated May 16, 2002, are acceptable for compliance with the corresponding requirements of paragraph (g) of this AD. New Requirements of This AD Modification for Upper Deck, Two-Piece Off-Wing, and Door 1, 2, 4, and 5 Slides and Slide/Rafts (k) For Model 747SP airplane with the variable number RG162: Within 36 months after the effective date of this AD, do the actions specified in paragraphs (k)(1) and (k)(2) of this AD, in accordance with Boeing Service Bulletin 747-25-3279, Revision 4, dated December 11, 2008. (1) Modify the inflation systems of the upper deck and two-piece off-wing escape slides. (2) Modify the inflation systems of the door 1, 2, 4, and 5 escape slides/rafts. Actions Accomplished According to Previous Issue of Service Bulletin (l) Actions accomplished before the effective date of this AD according to Boeing Service Bulletin 747-25-3279, Revision 2, dated July 26, 2006; or Revision 3, dated January 18, 2007; are considered acceptable for compliance with the corresponding actions specified in paragraph (g) of this AD. (m) Actions accomplished before the effective date of this AD according to Boeing Service Bulletin 747-25-3279, dated May 16, 2002; Revision 1, dated July 11, 2002; Revision 2, dated July 26, 2006; or Revision 3, dated January 18, 2007; are considered acceptable for compliance with the corresponding actions specified in paragraph (k) of this AD. Parts Installation for RG162 (n) For Model 747SP airplane with the variable number RG162: As of the effective date of this AD, unless the regulator assembly of the inflation system has been modified in accordance with paragraph (k) of this AD, no person may install on that airplane a regulator assembly with any of the following part numbers (P/Ns): P/N 4A3047, -2, -3, -4, -5, -8, -9, or -10; P/N 4A3194-1, -2, -3, or -4; or P/N 4A3474-3. Alternative Methods of Compliance (AMOCs) (o)(1) The Manager, Seattle 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: Andrew Guion, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 917-6428; fax (425) 917-6590. (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. (3) AMOCs approved previously in accordance with AD 2005-16-06 are approved as AMOCs for the corresponding provisions of this AD. Material Incorporated by Reference (p) You must use the service information contained in Table 2 of this AD, as applicable, to do the actions required by this AD, unless the AD specifies otherwise. Table 2—All Material Incorporated by Reference Boeing Service Bulletin— Revision— Dated— 747-25-3232 Original July 6, 2000. 747-25-3279 1 July 11, 2002. 747-25-3279 4 December 11, 2008. (1) The Director of the Federal Register approved the incorporation by reference of the service information contained in Table 3 of this AD under 5 U.S.C. 552(a) and 1 CFR part 51. Table 3—New Material Incorporated by Reference Boeing Service Bulletin— Revision— Dated— 747-25-3279 4 December 11, 2008. (2) The Director of the Federal Register previously approved the incorporation by reference of the service information contained in Table 4 of this AD on September 13, 2005 (70 FR 46067, August 9, 2005). Table 4—Material Previously Incorporated by Reference Boeing Service Bulletin— Revision— Dated— 747-25-3232 Original July 6, 2000. 747-25-3279 1 July 11, 2002. (3) For Boeing 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 . For Goodrich service information identified in this AD, contact Goodrich Corporation, Aircraft Interior Products, ATTN: Technical Publications, 3414 South Fifth Street, Phoenix, Arizona 85040; telephone 602-243-2270; e-mail george.yribarren@goodrich.com ; Internet http://www.goodrich.com/TechPubs . (4) 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. (5) 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 May 6, 2009. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E9-11284 Filed 5-19-09; 8:45 am] BILLING CODE 4910-13-P

This AD results from a report of 30- to 60-second delays in the inflation of escape slides/rafts. We are issuing this AD to prevent actuation delays in the inflation systems of the escape slides/rafts, which could result in delayed or failed deployment of escape slides/rafts during emergency evacuation of an airplane.