Airworthiness Directive · Amendment 39-14479 · Boeing Model 747SP, 747SR, 747-100, -100B, -100B SUD, -200B, -200C, -200F, and -300 Series Airplanes
Boeing Model 747SP, 747SR, 747-100, -100B, -100B SUD, -200B, -200C, -200F, and -300 Series Airplanes
Model 747SP, 747SR, 747-100, -100B, -100B SUD, -200B, -200C, -200F, and -300 series airplanes; certificated in any category; equipped with an escape slide/raft pack assembly; as identified in Boeing Service Bulletin 747-25-3274, Revision 4, dated February 23, 2006.
This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 747SP, 747SR, 747-100, -100B, -100B SUD, -200B, -200C, -200F, and -300 series airplanes, that requires modification of the escape slide/raft pack assembly and cable release sliders, as applicable. The actions specified by this AD are intended to prevent improper deployment of the escape slide/raft or blockage of the passenger/crew doors in the event of an emergency evacuation, which could result in injury to passengers or crewmembers. This action is intended to address the identified unsafe condition.
To prevent improper deployment of the escape slide/raft or blockage of the passenger/crew doors in the event of an emergency evacuation, which could result in injury to passengers or crewmembers, accomplish the following:
(a) Within 36 months after the effective date of this AD: Accomplish the actions specified in paragraphs (a)(1) and (a)(2) of this AD, as applicable.
(1) Modify the escape slide/raft pack assembly (includes removing the slide packs, replacing the cover release pin cable assemblies with new assemblies, and removing the cable guard bracket, as applicable). Do the modification in accordance with Boeing Service Bulletin 747-25-3274, Revision 4, dated February 23, 2006. Previously accomplishing the modification in accordance with Boeing Special Attention Service Bulletin 747-25-3274, Revision 1, dated January 9, 2003; Revision 2, dated August 26, 2004; or Revision 3, dated December 16, 2004; is acceptable for compliance with this paragraph, except as specified in paragraph 1.D, “Description”, of Revision 4 of the service bulletin.
(2) For airplanes on which the modification of Door 3, as specified in Boeing Special Attention Service Bulletin 747-25-2666, Revision 2; and Goodrich Service Bulletin 25-238, Revision 1; has been accomplished: No further action is required for Door 3 only.
(b) For Groups 2, 5, 6, 7, 8, 11, 12, 13, 14, and 15 airplanes: Prior to or concurrently with accomplishment of paragraph (a) of this AD, modify the outboard cover panel of the cable release sliders of the floor-mounted upper deck slide pack assembly, as specified in Figure 2 of Boeing Service Bulletin 747-25-3307, Revision 2, dated July 8, 2004.
(c)(1) The Manager, Seattle Aircraft Certification Office (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.
(d) Unless otherwise specified in this AD, the actions must be done in accordance with Boeing Service Bulletin 747-25-3274, Revision 4, dated February 23, 2006; and Boeing Service Bulletin 747-25-3307, Revision 2, dated July 8, 2004; as applicable. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get copies of this service information, contact Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124-2207. To inspect copies of this service information, go to the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or 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.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
