Airworthiness directives › 98-15-08
AD 98-15-08 Airworthiness Directives; British Aerospace Model BAe 146 and Model Avro 146-RJ Series Airplanes
Models named: BAe 146, Model Avro 146-RJ series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model BAe 146 and Model Avro 146-RJ series airplanes, as listed in British Aerospace Service Bulletin SB.57-49, Revision 1, dated June 19, 1997, and having wing skins made from 7150-T651 aluminum; 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 (b) 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 detect and correct stress corrosion cracking in the wing skin, which could result in reduced structural integrity of the wing, accomplish the following: (a) Within 4 months after the effective date of this AD; and thereafter at intervals not to exceed 4,000 landings or 2 years, whichever occurs first: Perform a detailed visual inspection of the top wing skins to detect stress corrosion cracking, and any damaged or missing surface protective finish that exposes the metallic surfaces, in accordance with British Aerospace Service Bulletin SB.57-49, dated June 4, 1996, or Revision 1, dated June 19, 1997. (1) If any damaged or missing surface protective finish is detected, and no cracking or corrosion is detected, prior to further flight, reapply the protective finish in accordance with the service bulletin. Repeat the detailed visual inspection, thereafter, at intervals not to exceed 4,000 landings or 2 years, whichever occurs first. (2) If any cracking is detected, prior to further flight, repair in accordance with a method approved by the Manager, International Branch, ANM-116, FAA, Transport Airplane Directorate. Note 2: During the detailed visual inspections of the top wing skins, pay particular attention to the edge of cutouts, skin edges, and attachment bolt holes. (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, International Branch, ANM-116. 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 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116. (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) Except as provided by paragraph (a)(2) of this AD, the inspections and repairs shall be done in accordance with British Aerospace Service Bulletin SB.57-49, dated June 4, 1996; or British Aerospace Service Bulletin SB.57-49, Revision 1, dated June 19, 1997. 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 4: The subject of this AD is addressed in British airworthiness directive 005-06-96, dated June 4, 1996. (e) This amendment becomes effective on August 20, 1998. Issued in Renton, Washington, on July 8, 1998. S.R. Miller, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-18770 Filed 7-15-98; 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