AD 95-02-13 Airworthiness Directives; Boeing Model 747 Series Airplanes Equipped With General Electric CF6-80C2 Engines

Models named: 747 series. Read the applicability below — it usually turns on serial or part numbers too.

Model 747 series airplanes equipped with General Electric CF6-80C2 engines; as listed in Boeing Alert Service Bulletin 747-26A2226, dated June 30, 1994, or Revision 1, dated November 23, 1994; 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 use the authority provided in paragraph (b) to request approval from the FAA. This approval may address either no action, if the current configuration [[Page 8540]] eliminates the unsafe condition; or different actions necessary to address the unsafe condition described in this AD. Such a request should include an assessment of the effect of the changed configuration on the unsafe condition addressed by this AD. In no case does the presence of any modification, alteration, or repair remove any airplane from the applicability of this AD.

Required as indicated, unless accomplished previously. To ensure proper distribution of the fire extinguisher agent within the nacelle in the event of a fire, accomplish the following: -(a) Within 6 months after the effective date of this AD, modify the fire extinguishing system in the number two engine strut, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 747-26A2226, dated June 30, 1994, or Revision 1, dated November 23, 1994. (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 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO. (c) Special flight permits may be issued in accordance with sections 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. (d) The modification shall be done in accordance with Boeing Alert Service Bulletin 747-26A2226, dated June 30, 1994, and Boeing Alert Service Bulletin 747-26A2226, Revision 1, dated November 23, 1994. 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 March 17, 1995. Issued in Renton, Washington, on January 24, 1995. Darrell M. Pederson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 95-2147 Filed 2-14-95; 8:45 am] BILLING CODE 4910-13-P