96-17-10: Outflow/Safety Valve

96-17-10 BEECH AIRCRAFT CORPORATION: Amendment 39-9719. Docket 95-NM-255-AD. Applicability: Model 400, 400A, MU-300-10, and 2000 airplanes, Model 200 and B200 series airplanes having a maximum altitude capability of greater than 31,000 feet, and Model 300 and B300 series airplanes; equipped with Allied Signal outflow/safety valves, as identified in Allied Signal Aerospace Service Bulletins 103570-21-4012 and 103648-21-4022, both Revision 1, both dated May 30, 1995; 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 (c) 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 cracking and subsequent failure of the outflow/safety valves, which could result in rapid decompression of the airplane, accomplish the following: (a) Within 18 months after the effective date of this AD, replace the outflow/safety valve in accordance with Allied Signal Aerospace Service Bulletin 103570-21-4012 (for airplanes equipped with valves having part number 103570-25, 103570-26, or 103570-27), or 103648-21-4022 (for airplanes equipped with valves having part number 103648-1, 103648-3, 103648-4, 103648-5, 103648-6, 103648-7, or 103648-13), both Revision 1, both dated May 30, 1995, as applicable. (b) As of the effective date of this AD, no person shall install an outflow/safety valve, having a part number and serial number identified in Allied Signal Aerospace Service Bulletin 103570-21-4012 (for airplanes equipped with valves having part number 103570-25, 103570-26, or 103570-27), or 103648-21-4022 (for airplanes equipped with valves having part number 103648-1, 103648-3, 103648-4, 103648-5, 103648-6, 103648-7, or 103648-13), both Revision 1, both dated May 30, 1995, on any airplane unless that valve is considered to be serviceable in accordance with the applicable service bulletin. (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, Los Angeles 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, Los Angeles ACO. NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles ACO. (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. (e) The replacement shall be done in accordance with Allied Signal Aerospace Service Bulletin 103570-21-4012, or 103648-21-4022, both Revision 1, both dated May 30, 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 Allied Signal Aerospace, Technical Publications, Dept. 65-70, P.O. Box 52170, Phoenix, Arizona 85072-2170. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the FAA, Los Angeles Aircraft CertificationOffice, Transport Airplane Directorate, 3960 Paramount Boulevard, Lakewood, California; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (f) This amendment becomes effective on September 24, 1996.