AD 2005-17-10 Airworthiness Directives; Saab Model SAAB 2000 Airplanes

Models named: SAAB 2000. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to certain Saab Model SAAB 2000 airplanes having serial numbers 004 through 063 inclusive, certificated in any category.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Inspection (f) Prior to the accumulation of 20,000 total flight cycles, perform non-destructive tests for cracking of the fastener holes in the lower spar cap of the rear spar and in the lower skin at the left-hand and right-hand sides of the front spar, between WS20 and WS83 inclusive; by accomplishing all the actions specified in Parts A, B, and C of the Accomplishment Instructions of Saab Service Bulletin 2000-57-038, Revision 01, dated June 24, 2004. If any cracking is detected, before further flight, repair the cracking according to a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the Luftfartsverket (LFV) (or its delegated agent). Modification (g) Prior to the accumulation of 20,000 total flight cycles, modify the fastener holes of the front and rear spars and the rear spar web, including related investigative actions, by accomplishing all the actions specified in Part D of the Accomplishment Instructions of Saab Service Bulletin 2000-57-038, Revision 01, dated June 24, 2004. If 1/4 -inch fasteners are needed for holes No. 7 and No. 8, before further flight, contact the Manager, International Branch, ANM-116, for further actions, or the LFV (or its delegated agent). If any scratches or other damage is detected on the skin surface or the surface of the front spar, before further flight, repair in accordance with a method approved by the Manager, International Branch, ANM-116, or the LFV (or its delegated agent). Actions Accomplished Previously (h) Inspections or modifications accomplished before the effective date of this AD in accordance with the Accomplishment Instructions of Saab Service Bulletin 2000-57-038, dated December 18, 2002, are considered acceptable for compliance with the corresponding actions specified in this AD. Alternative Methods of Compliance (AMOCs) (i) The Manager, International Branch, ANM-116, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. Material Incorporated by Reference (j) You must use Saab Service Bulletin 2000-57-038, Revision 01, dated June 24, 2004, to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approves the incorporation by reference of this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get copies of the service information, contact Saab Aircraft AB, SAAB Aircraft Product Support, S-581.88, Linköping, Sweden. To view the AD docket, go to the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., room PL-401, Nassif Building, Washington, DC. To review copies of the service information, go to the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741-6030, or go to http://www.archives.gov/federal-register/cfr/ibr-locations.html . Issued in Renton, Washington, on August 11, 2005. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05-16456 Filed 8-22-05; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by a report of cracking of certain fastener holes in the lower spar cap of the rear spar and in the lower skin at the front spar. We are issuing this AD to prevent cracking of the front and rear spars, which could result in fuel leakage and consequent reduced structural integrity of the wing structure.