2011-01-08: Flight Controls

2011-01-08 Fokker Services B.V.: Amendment 39-16561. Docket No. FAA- 2010-0701; Directorate Identifier 2010-NM-017-AD. Effective Date (a) This airworthiness directive (AD) becomes effective February 9, 2011. Affected ADs (b) This AD supersedes AD 2008-22-14, Amendment 39-15710. Applicability (c) This AD applies to Fokker Services B.V. 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: Two reports have been received where, during inspection of the vertical stabilizer of F28 Mark 0100 aeroplanes, one of the bolts that connect the horizontal stabilizer control unit actuator with the dog-links was found broken (one on the nut side & one on the head side). In both occasions, the bolt shaft was still present in the connection and therefore the horizontal stabilizer function was not affected. If a single dog-link connection fails, the complete stabilizer load is taken up by the remaining dog-link connection. * * * To address and correct this unsafe condition EASA [European Aviation Safety Agency] issued AD 2007-0287 [corresponding FAA AD 2008-22-14] that required a one-time inspection of the affected bolts, * * * and replacement of failed bolts with serviceable parts. EASA AD 2007-0287 also required the installation of a tie wrap through the lower bolts of the horizontal stabilizer control unit, to keep the bolt in place in the event of a bolt head failure. Recent examination revealed that the bolts failed due to stress corrosion, attributed to excessive bolt torque. Investigation of the recently failed bolts showed that the modification as required by AD 2007-0287 is not adequate. * * * * * Loss of horizontal stabilizer function could result in partial loss of control of the airplane. Compliance (f) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Restatement of Requirements of AD 2008-22-14 Actions and Compliance (g) Unless already done, within 6 months after December 26, 2008 (the effective date of AD 2008-22-14), 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 that 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. New Requirements of This ADActions (h) Within 30 months after the effective date of this AD, do the actions specified in paragraphs (h)(1) and (h)(2) of this AD concurrently. Accomplishing the actions of both paragraphs (h)(1) and (h)(2) of this AD terminates the actions required by paragraph (g) of this AD. (1) Remove the tie-wrap, P/N MS3367-2-9, from the lower bolts of the horizontal stabilizer control unit, in accordance with the Accomplishment Instructions of Fokker Service Bulletin SBF100-27- 092, dated April 27, 2009. (2) Remove the lower bolts, P/N 23233-1, of the horizontal stabilizer control unit and install bolts, P/N 23233-3, in accordance with the Accomplishment Instructions of Goodrich Service Bulletin 23100-27-29, dated November 14, 2008. (i) After accomplishing the requirements of paragraph (h) of this AD, do not install a bolt having P/N 23233-1 or a tie-wrap having P/N MS3367-2-9. FAA AD Differences Note 1: This AD differs from the MCAI and/or service informationas follows: No differences. Other FAA AD Provisions (j) 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, Washington 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 principal maintenance inspector (PMI) or principal avionics inspector (PAI), as appropriate, or lacking a principal inspector, your local Flight Standards District Office. The AMOC approval letter must specifically reference this AD. (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: A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Commentsconcerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES-200. Related Information (k) Refer to MCAI EASA Airworthiness Directive 2009-0216, dated October 7, 2009; Fokker Service Bulletin SBF100-27-091, dated August 31, 2007; Fokker Service Bulletin SBF100-27-092, dated April 27, 2009; and Goodrich Service Bulletin 23100-27-29, dated November 14, 2008; for related information. Material Incorporated by Reference (l) You must use the applicable service information contained in Table 1 of this AD to do the actions required by this AD, unless the AD specifies otherwise. Table 1--All Material Incorporated by Reference Document Date Fokker Service Bulletin SBF100-27-091 August 31, 2007 Fokker Service Bulletin SBF100-27-092 April 27, 2009 Goodrich Service Bulletin 23100-27-29 November 14, 2008 (1) The Director of the Federal Register approved the incorporation by reference of Fokker Service Bulletin SBF100-27-092, dated April 27, 2009; and Goodrich Service Bulletin 23100-27-29, dated November 14, 2008; under 5 U.S.C. 552(a) and 1 CFR part 51. (2) The Director of the Federal Register previously approved the incorporation by reference of Fokker Service Bulletin SBF100-27-091, dated August 31, 2007, on December 26, 2008 (73 FR 70261, November 20, 2008). (3) For Fokker 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. For Goodrich service information identified in this AD, contact Goodrich Corporation, Landing Gear, 1400 South Service Road, West Oakville L6L 5Y7, Ontario, Canada; telephone 905- 825-1568; e-mail [email protected]; Internet http:// www.goodrich.com/TechPubs. (4) You may review copies of the service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425-227-1221. (5) You may also review copies of the service information that is incorporated by reference 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/code_of_federal_regulations/ ibr_locations.html.