Airworthiness directives › 99-24-17
AD 99-24-17 Airworthiness Directives; Saab Model SAAB 2000 Series Airplanes
Models named: SAAB 2000 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model SAAB 2000 series airplanes, as listed in Saab Service Bulletin 2000-57-029, dated June 4, 1999; 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 fatigue cracking in the lower spar cap of the wing rear spar and in the lower skin at the wing front spar, just outside the nacelle, on the left-hand and right-hand side of the airplane, which could result in fuel leakage and consequent fire in or around the wing, accomplish the following: (a) Prior to the accumulation of 13,000 total flight cycles, or within 500 flight cycles after the effective date of this AD, whichever occurs later, modify the airplane by coldworking the fastener holes at the front and rear wing spar (including all applicable nondestructive test and detailed visual inspections and repairs of holes) and installing modified support angles for the lower trailing edge panel of the wing, in accordance with the instructions of Saab Service Bulletin 2000-57-029, dated June 4, 1999. (b) Where Saab Service Bulletin 2000-57-029, dated June 4, 1999, specifies that Saab be contacted for repair instructions for certain damage conditions, this AD requires that such damage conditions must be repaired in accordance with a method approved by either the Manager, International Branch, ANM-116, FAA, Transport Airplane Directorate; or the Luftfartsverket (LFV) (or its delegated agent). For a repair method to be approved by the Manager, International Branch, ANM-116, as required by this paragraph, the Manager's approval letter must specifically reference this AD. Alternative Methods of Compliance (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. 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. Special Flight Permits (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. Incorporation by Reference (e) Except as provided by in paragraph (b) of this AD, the actions shall be done in accordance with Saab Service Bulletin 2000- 57-029, dated June 4, 1999. 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 Saab Aircraft AB, SAAB Aircraft Product Support, S-581.88, Linkoping, Sweden. 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. [[Page 66760]] Note 3: The subject of this AD is addressed in Swedish airworthiness directive SAD 1-142, dated June 4, 1999. (f) This amendment becomes effective on January 4, 2000. Issued in Renton, Washington, on November 18, 1999. D. L. Riggin, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 99-30626 Filed 11-29-99; 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