Airworthiness directives › 99-17-20
AD 99-17-20 Airworthiness Directives; Boeing Model 757-200 and -300 Series Airplanes
Models named: 757-200, -300 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model 757-200 and -300 series airplanes equipped with off-wing emergency evacuation slides, as listed in Boeing Service Bulletin 757-25-0182, Revision 1, dated June 12, 1997, or Boeing Service Bulletin 757-25-0200, dated January 21, 1999; certificated in any category. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (b) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
Compliance
Required as indicated, unless accomplished previously. To prevent separation of the emergency evacuation slide from the airplane, which could result in damage to the fuselage and unavailability of an escape slide during an emergency evacuation, accomplish the following: Modification (a) Within 18 months after the effective date of this AD: Modify the left and right off-wing emergency evacuation slide systems by accomplishment of paragraph (a)(1) or (a)(2) of this AD, as applicable. (1) For airplanes listed in Boeing Service Bulletin 757-25-0182, Revision 1, dated June 12, 1997: Modify the door latch system of the left and right off-wing emergency evacuation slide systems in accordance with the service bulletin. Note 2: Modification of the door latch system of the off-wing emergency evacuation slide system, prior to the effective date of this AD, in accordance with Boeing Service Bulletin 757-25-0182, dated October 10, 1996, is considered acceptable for compliance with paragraph (a)(1) of this AD. (2) For airplanes listed in Boeing Service Bulletin 757-25-0200, dated January 21, 1999: Install a bumper assembly on the bottom of the left and right off-wing escape slide carriers, and install new placards in the area of the maintenance access door, in accordance with the service bulletin. [[Page 45438]] Alternative Methods of Compliance (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Seattle ACO. Note 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO. Special Flight Permits (c) Special flight permits may be issued in accordance with Secs. 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. Incorporation by Reference (d) The actions shall be done in accordance with Boeing Service Bulletin 757-25-0182, Revision 1, dated June 12, 1997, or Boeing Service Bulletin 757-25-0200, dated January 21, 1999; 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. Copies may be obtained from Boeing Commercial Airplane Group, P.O. Box 3707, Seattle, Washington 98124-2207. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on September 24, 1999. Issued in Renton, Washington, on August 13, 1999. D.L. Riggin, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 99-21571 Filed 8-19-99; 8:45 am] BILLING CODE 4910-13-U
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1