2011-23-04: Forward engine mount assembly side links

Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by removing airworthiness directive (AD) 2006-12-24, Amendment 39-14650 (71 FR 34807, June 16, 2006), and adding the following new AD: 2011-23-04 General Electric Company: Amendment 39-16855; Docket No. FAA-2010-1151; Directorate Identifier 95-ANE-10-AD. Effective Date (a) This airworthiness directive (AD) is effective December 12, 2011. Affected ADs (b) This AD supersedes AD 2006-12-24, Amendment 39-14650 (71 FR 34807, June 16, 2006). Applicability (c) This AD applies to General Electric (GE) CF6-45A, CF6-45A2, CF6-50A, CF6-50C, CF6-50CA, CF6-50C1, CF6-50C2, CF6-50C2B, CF6- 50C2D, CF6-50E, CF6-50E1, CF6-50E2, CF6-50E2B, CF6-80A, CF6-80A1, CF6-80A2, and CF6-80A3 turbofan engines, including engines marked on the engine data plate as CF6-50C2-F and CF6-50C2-R, with left-hand side links part numbers (P/Ns) 9204M94P01, 9204M94P03, 9346M99P01, and 9346M99P03, and right-hand side links, P/Ns 9204M94P02, 9204M94P04, 9346M99P02, and 9346M99P04, installed on the forward engine mount assembly (also known as Configuration 2). Unsafe Condition (d) This AD results from a report that GE had omitted two affected side link part numbers from the applicability of the original AD. We are issuing this AD to include those part numbers and to prevent failure of the side links and possible engine separation from the airplane. Compliance (e) You are responsible for having the actions required by this AD performed at every exposure of the side link. Inspecting and Stripping and Reapplying the Sermetel W Coating on the Side Links (f) Inspect, strip, andreapply the Sermetel W coating on each side link at every exposure of the side link. Use the following GE service bulletins (SBs): (1) For CF6-45/-50 series engines, use paragraphs 3.A. through 3.E. of the Accomplishment Instructions of CF6-50 S/B 72-1255, Revision 1, dated June 17, 2009. (2) For CF6-80A series engines, use paragraphs 3.A. through 3.E. of the Accomplishment Instructions of CF6-80A S/B72-0797, Revision 1, dated June 17, 2009. Definition of Exposure of Side Link (g) A side link is exposed when one or more bolts that attach the side links to the fan frame-front high-pressure compressor case are removed or when the bolt attaching the side link to the mount platform is removed. Alternative Methods of Compliance (h) The Manager, Engine Certification Office, FAA, may approve alternative methods of compliance for this AD. Use the procedures found in 14 CFR 39.19 to make your request. Related Information (i) For more information about thisAD, contact Tomasz Rakowski, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: (781) 238-7735; fax: (781) 238-7199; email: tomasz.rakowski@faa.gov. Material Incorporated by Reference (j) You must use the following service information to do the actions required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference (IBR) under 5 U.S.C. 552(a) and 1 CFR part 51 of the following service information on the date specified: (1) GE CF6-50 S/B 72-1255, Revision 1, dated June 17, 2009, approved for IBR December 12, 2011. (2) GE CF6-80A S/B 72-0797, Revision 1, dated June 17, 2009, approved for IBR December 12, 2011. (3) For service information identified in this AD, contact GE Aviation M/D Rm. 285, One Neumann Way, Cincinnati, OH 45215; phone: (513) 552-3272; email: geae.aoc@ge.com. (4) You may review copiesof the service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call (781) 238-7125. (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 an NARA facility, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.