Airworthiness directives › 98-03-17
AD 98-03-17 Airworthiness Directives; British Aerospace Model HS 748 Series Airplanes
Models named: HS 748 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
All Model HS 748 series airplanes, 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 failure of the gust locks of the flight control system, which could result in reduced controllability of the airplane, accomplish the following: (a) Within 30 days after the effective date of this AD, perform an inspection to detect discrepancies (improper gaps or failure of the `pull down' check) of the aileron, rudder, and elevator gust locks, in accordance with Part 1 of the Accomplishment Instructions of Jetstream Alert Service Bulletin HS748-A27-128, dated December 20, 1996. (1) If no discrepancy is detected, repeat the inspection required by paragraph (a) of this AD thereafter at intervals not to exceed 750 flight hours. (2) If any discrepancy is detected, prior to further flight, accomplish the actions required by paragraph (b) of this AD. Thereafter, repeat the inspection required by paragraph (a) of this AD at intervals not to exceed 750 flight hours. [[Page 6066]] (b) Except as provided by paragraph (a)(2) of this AD, prior to the accumulation of 750 flight hours after the accomplishment of the actions required by paragraph (a) of this AD: Perform an inspection to detect discrepancies (excessive wear or play, improper alignment or adjustment, or improper clearances) of the aileron, rudder, and elevator gust locks; and re-rig the gust lock system; in accordance with Part 2 of the Accomplishment Instructions of Jetstream Alert Service Bulletin HS748-A27-128, dated December 20, 1996. (1) If no discrepancy is detected, repeat the inspection and re- rigging required by paragraph (b) of this AD thereafter at intervals not to exceed 1,500 flight hours. (2) If any discrepancy is detected, prior to further flight, repair in accordance with the alert service bulletin. Thereafter, repeat the inspection and re-rigging required by paragraph (b) of this AD at intervals not to exceed 1,500 flight hours. (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, International Branch, ANM-116, 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, International Branch, ANM-116. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116. (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 actions shall be done in accordance with Jetstream Alert Service Bulletin HS748-A27-128, dated December 20, 1996. 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 AI(R) American Support, Inc., 13850 McLearen Road, Herndon, Virginia 20171. 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. Note 3: The subject of this AD is addressed in British airworthiness directive 008-12-96. (f) This amendment becomes effective on February 23, 1998. Issued in Renton, Washington, on January 30, 1998. Darrell M. Pederson, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-2822 Filed 2-5-98; 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