2005-08-07: Control-column support

2005-08-07 Pilatus Aircraft Limited: Amendment 39-14059; Docket No. FAA-2004-20006; Directorate Identifier 2004-CE-49-AD. When Does This AD Become Effective? (a) This AD becomes effective on June 2, 2005. What Other ADs Are Affected by This Action? (b) None. What Sailplanes Are Affected by This AD? (c) This AD affects Models B4-PC11, B4-PC11A, and B4-PC11AF sailplanes, all serial numbers, that are certificated in any category. What Is the Unsafe Condition Presented in This AD? (d) This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Switzerland. The actions specified in this AD are intended to detect and correct cracks in the control-column support, which could result in failure of the support. This failure could lead to loss of the primary flight control system. What Must I Do To Address This Problem? (e) To address this problem, you must do the following: ActionsCompliance Procedures (1) Inspect the control-column support (part number (P/N) 112.35.11.072) for cracks. Initially inspect within 12 calendar months after the last inspection under Pilatus Aircraft Ltd. Service Bulletin No. 1005, Revision No. 1, dated April 9, 2003, or Pilatus Aircraft Ltd. Service Bulletin No. 1005, Revision No. 2, dated April 22, 2004, where no cracks were found or within the next 30 days after June 2, 2005 (the effective date of this AD), whichever occurs later, unless already done. Repetitively inspect 2004. thereafter at intervals not to exceed every 12 calendar months regardless of whether the control-column support was replaced. Follow Pilatus B4 PC 11 Aircraft Ltd. Service Bulletin No. 1005, Revision No. 2, dated April 22, 2004. (2) If any cracks are found after the inspection required by paragraph (e)(1) of this AD, replace the control-column support(P/N 112.35.11.072) with a new control-column support (P/N 112.35.11.072). Before further flight after the inspection required by paragraph (e)(1) of this AD where you found the crack. Continue the repetitive inspections required by paragraph (e)(1) of this AD. Follow Pilatus B4 PC 11 Aircraft Ltd. Service Bulletin No. 1005, Revision No. 2, dated April 22, 2004. May I Request an Alternative Method of Compliance? (f) You may request a different method of compliance or a different compliance time for this AD by following the procedures in 14 CFR 39.19. Unless FAA authorizes otherwise, send your request to your principal inspector. The principal inspector may add comments and will send your request to the Manager, Standards Office, Small Airplane Directorate, FAA. For information on any already approved alternative methods of compliance, contact Doug Rudolph, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4059; facsimile: (816) 329-4090. May I Obtain a Special Flight Permit for the Initial Inspection Requirement of This AD? (g) No. Special flight permits are not allowed for this AD. Is There Other Information That Relates to This Subject? (h) Swiss AD Number HB 2004-491, dated December 23, 2004, also addresses the subject of this AD. Does This AD Incorporate Any Material by Reference? (i) You must do the actions required by this AD following the instructions in Pilatus B4-PC 11 Aircraft Ltd. Service Bulletin No. 1005, Revision No. 2, dated April 22, 2004. The Director of the Federal Register approved the incorporation by reference of this service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get a copy of this service information, contact Pilatus Aircraft Ltd., Customer Liaison Manager, CH-6371 Stans, Switzerland; telephone: +41 41 619 6208; facsimile: +41 41 619 7311; email: [email protected] or from Pilatus BusinessAircraft Ltd., Product Support Department, 11755 Airport Way, Broomfield, Colorado 80021; telephone: (303) 465-9099; facsimile: (303) 465- 6040. To review copies of this service information, go to the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html or call (202) 741-6030. To view the AD docket, go to the Docket Management Facility; U.S. Department of Transportation, 400 Seventh Street, SW., Nassif Building, Room PL- 401, Washington, DC 20590-001 or on the Internet at http://dms.dot.gov. The docket number is FAA-2004-20006; Directorate Identifier 2004-CE-49-AD.