Airworthiness directives › 99-06-11
AD 99-06-11 Airworthiness Directives; British Aerospace HP137 Mk1, Jetstream Series 200, and Jetstream Models 3101 and 3201 Airplanes
Models named: 3101, 3201. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
HP137 Mk1, Jetstream Series 200, and Jetstream Models 3101 and 3201 airplanes, all serial numbers, 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 (d) 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 in the body of this AD, unless already accomplished. To prevent failure of the bearings in the elevator down bias spring assembly caused by the installation of an incorrectly manufactured bias spring or damage or distortion to the assembly, which could result in reduced or loss of control of the airplane, accomplish the following: (a) Within the next 100 hours time-in-service after the effective date of this AD, inspect the elevator bias spring assembly for correct installation and to assure that the correctly manufactured bias spring is installed, in accordance with the ACCOMPLISHMENT INSTRUCTIONS section of Jetstream Alert Service Bulletin 27-A-JA980606, Original Issue: July 6, 1998, Revision 1: July 31, 1998. (b) If an incorrectly manufactured bias spring is installed or the elevator bias spring assembly is incorrectly installed, prior to further flight, accomplish the following in accordance with the ACCOMPLISHMENT INSTRUCTIONS section of Jetstream Alert Service Bulletin 27-A-JA980606, Original Issue: July 6, 1998, Revision 1: July 31, 1998. (1) Rework any incorrectly installed bias spring assembly; (2) Replace any incorrectly manufactured bias spring; and (3) Inspect the link assembly for distortion or damage, and replace any distorted and/or damaged parts. (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. (d) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Small Airplane Directorate, Aircraft Certification Service, 1201 Walnut, suite 900, Kansas City, Missouri 64106. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Small Airplane Directorate. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Small Airplane Directorate. (e) Questions or technical information related to British Aerospace Jetstream Alert Service Bulletin 27-A-JA980606, (Original Issue: July 6, 1998) Revision 1: July 31, 1998, should be directed to British Aerospace Regional Aircraft, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland; telephone: (01292) 479888; facsimile: (01292) 479703. This service information may be examined at the FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri 64106. (f) The inspections, modifications, and replacements required by this AD shall be done in accordance with Jetstream Alert Service Bulletin 27-A-JA980606, Original Issue: July 6, 1998, Revision 1: July 31, 1998. 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 British Aerospace Regional Aircraft, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland. Copies may be inspected at the FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 800 North Capitol Street, NW, suite 700, Washington, DC. Note 3: The subject of this AD is addressed in British Aerospace Jetstream Alert Service Bulletin 27-A-JA980606, Original Issue: July 6, 1998, Revision 1: July 31, 1998. This service bulletin is classified as mandatory by the United Kingdom Civil Aviation Authority (CAA). (g) This amendment becomes effective on April 26, 1999. Issued in Kansas City, Missouri, on March 5, 1999. Marvin R. Nuss, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 99-6101 Filed 3-17-99; 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