2008-22-14: Bolts

2008-22-14 Fokker Services B.V.: Amendment 39-15710. Docket No. FAA- 2008-0850; Directorate Identifier 2007-NM-342-AD. Effective Date (a) This airworthiness directive (AD) becomes effective December 26, 2008. Affected ADs (b) This AD supersedes AD 97-13-05, Amendment 39-10051. Applicability (c) This AD applies to Fokker Model F.28 Mark 0100 airplanes, certificated in any category, all serial numbers. Subject (d) Air Transport Association (ATA) of America Code 27: Flight Controls. Reason (e) The mandatory continuing airworthiness information (MCAI) states: In January 1996, Fokker issued Service Bulletin (SB) SBF100-27- 069 (referencing Menasco, now Goodrich, SB 23100-27-19) to introduce an inspection of bolt Part Number (P/N) 23233-1 for cracks after the examination of a failed bolt. This Service Bulletin was made mandatory by CAA-NL (Civil Aviation Authority--the Netherlands) with the issuance of AD BLA 1996-006 (A) [reference corresponding FAA AD 97-13-05]. Additionally the same SB introduced a lower torque value for these bolts. During recent inspections it was found that some of these bolts, that connect the horizontal stabilizer control unit actuator with the dog-links, were broken. This condition, if not corrected, could lead to [the loss of the flight control input connection to the horizontal stabilizer and consequent] partial loss of control of the aircraft. Since an unsafe condition has been identified that continues to exist or develop on other aircraft of the same type design, this Airworthiness Directive [European Aviation Safety Agency (EASA) Airworthiness Directive 2007-0287, dated November 15, 2007] supersedes CAA-NL AD 1996-006 and requires an integrity check by a re-torque in accordance with SBF100-27-091 and the installation of a tie wrap through the bolt, which will act as a retainer for the bolt and nut. The key function for this tie-wrap is to keep the bolt in place in the event the bolt head fails. The corrective action includes replacing any failed bolt (i.e., broken or loose bolt) with a serviceable bolt. Actions and Compliance (f) Unless already done, within 6 months after the effective date of this AD, do the following actions. (1) Perform a one-time inspection (integrity check) for failure of the lower bolts of the stabilizer control unit dog-links, in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF100-27-091, dated August 31, 2007. If a failed bolt is found, before further flight, replace the bolt with a serviceable bolt in accordance with the Accomplishment Instructions of the service bulletin. (2) Install a tie-wrap through the lower bolts of the stabilizer control unit, in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF100-27-091, dated August 31, 2007. FAA AD Differences Note: This AD differs from the MCAI and/or service information as follows: No differences.Other FAA AD Provisions (g) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Tom Rodriguez, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, WA 98057-3356; telephone (425) 227-1137; fax (425) 227-1149. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120- 0056. Related Information (h) Refer to MCAI EASA Airworthiness Directive 2007-0287, dated November 15, 2007; and Fokker Service Bulletin SBF100-27-091, dated August 31, 2007; for related information. Material Incorporated by Reference (i) You must use Fokker Service Bulletin SBF100-27-091, dated August 31, 2007, to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Fokker Services B.V., Technical Services Dept., P.O. Box 231, 2150 AE Nieuw-Vennep, the Netherlands; telephone +31 (0)252-627-350; fax +31 (0)252-627-211; e-mail [email protected]; Internet http:// www.myfokkerfleet.com. (3) You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr- locations.html.