95-08-08 BOEING : Amendment 39-9197. Docket 95-NM-46-AD.\n\n Applicability: Model 737-200 and -200C airplanes equipped with dB Partners Hush Kit installed in accordance with Supplemental Type Certificate (STC) SA5730NM, certificated in any category.\n\n 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 (c) to request approval from the FAA. This approval may address either no action, if the current configuration 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.\n Compliance: Required as indicated, unless accomplished previously. \n To prevent separation of the nose cowl from the engine following turbine blade failure, accomplish the following:\n (a) Within 30 days after the effective date of this AD, install fail-safe straps onto the existing attach ring, in accordance with Nordam Service Bulletin SB 71-03, dated March 17, 1995.\n (b) As of the effective date of this AD, fail-safe straps must be installed onto the existing attach ring of the nose cowl, in accordance with Nordam Service Bulletin SB 71-03, dated March 17, 1995, prior to installation of STC SA5730NM on any airplane.\n (c) 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.\n NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO. \n (d) 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.\n (e) The installation shall be done in accordance with Nordam Service Bulletin SB 71-03, dated March 17, 1995. 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 The Nordam Group, 624 East 4th Street, Tulsa, Oklahoma 74120. 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.\n (f) This amendment becomes effective on May 2, 1995.
Thomas Rodriguez, Aerospace Engineer, Airframe Branch, ANM-120S, Seattle Aircraft Certification Office, FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, Washington; telephone (206) 227-2779; fax (206) 227-1181.