2017-05-09: Accessory Gearboxes

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 adding the following new airworthiness directive (AD): 2017-05-09 CFM International S.A.: Amendment 39-18820; Docket No. FAA-2016-9128; Directorate Identifier 2016-NE-19-AD. (a) Effective Date This AD becomes effective April 13, 2017. (b) Affected ADs None. (c) Applicability This AD applies to CFM International S.A. (CFM) CFM56-5B models, CFM56-5B/P models, CFM56-5B/3 models, CFM56-5B/2P models, CFM56-5B/ P1 models, CFM56-5B/2P1 models, and CFM56-5B/3B1 models engines with a radial drive shaft (RDS) serial number (S/N) listed in Appendix A of CFM Service Bulletin (SB) CFM56-5BS/B 72-0934, dated August 1, 2016, installed. (d) Subject Air Transport Association (ATA) of America Code 83, Accessory Gearboxes. (e) Unsafe Condition This AD was prompted by reports of the failure of the RDS on CFM CFM56-5B engines. We are issuing this AD to prevent failure of the RDS, which could lead to failure of one or more engines, loss of thrust control, and damage to the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. Within 6 months after the effective date of this AD, remove the RDS assembly, part number (P/N) 305-165-101-0, and RDS outer housing, P/N 301-295-106-0, and replace with parts eligible for installation. (g) Installation Prohibition After the effective date of this AD, do not install on any engine, an RDS with an S/N identified in Appendix A of CFM SB CFM56- 5B S/B 72-0934, dated August 1, 2016. (h) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: ANE-AD-AMOC@faa.gov. (i) Related Information For more information about this AD, contact Kasra Sharifi, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7773; fax: 781-238-7199; email: kasra.sharifi@faa.gov. (j) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) CFM International S.A. (CFM) Service Bulletin CFM56-5B S/B 72-0934, dated August 1, 2016. (ii) Reserved. (3) For CFM service information identifiedin this AD, contact CFM International Inc., Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; phone: 877-432-3272; fax: 877- 432-3329; email: aviation.fleetsupport@ge.com. (4) You may view this service information at FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. (5) You may view this service information 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.