2018-07-17: Turbine Section

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. [[Page 15733]] Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD): 2018-07-17 Safran Helicopter Engines (Type Certificate previously held by Turbomeca, S.A.): Amendment 39-19248; Docket No. FAA-2018- 0184; Product Identifier 2018-NE-07-AD. (a) Effective Date This AD is effective April 27, 2018. (b) Affected ADs None. (c) Applicability This AD applies to Safran Helicopter Engines, S.A., Arrius 2B1, 2B1A, 2B2, and 2K1 turboshaft engines with a power turbine wheel (PTW) assembly having a serial number listed in Appendix 2.1 of Safran Helicopter Engines Mandatory Service Bulletin (MSB) No. A319 72 2854, Version A, dated February 9, 2018. (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine Section. (e) Unsafe Condition This AD was prompted by an engine failure caused by missing turbine blade dampers. We are issuing this AD to prevent failure of a power turbine blade. The unsafe condition, if not addressed, could result in loss of engine power in flight and reduced control of the helicopter. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions Within 20 flight hours or 30 days after the effective date of this AD, whichever occurs first: (1) Inspect the PTW in accordance with paragraph 2.4.2.3 of Safran Helicopter Engines MSB No. A319 72 2854, Version A, dated February 9, 2018; and (2) If, as a result of the inspection required by paragraph (g)(1) of this AD, any dampers are found missing, replace the PTW with a part eligible for installation before further flight. (h) Installation Prohibition Do not install an engine with a PTW with a serial number listed in Appendix 2.1 of Safran Helicopter Engines MSB A319 72 2854, Version A, dated February 9, 2018, unless all thirty-one blade dampers are installed. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, ECO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (j)(1) of this AD. You may email your request to: ANE-AD-AMOC@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards districtoffice/certificate holding district office. (j) Related Information (1) For more information about this AD, contact Robert Green, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7754; fax: 781-238-7199; email: robert.green@faa.gov. (2) Refer to European Aviation Safety Agency (EASA) AD 2018- 0044, dated February 14, 2018, for more information. You may examine the EASA AD in the AD docket on the internet at http://www.regulations.gov by searching for and locating it in Docket No. FAA-2018-0184. (k) 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) Safran Helicopter Engines Alert Mandatory Service Bulletin No. A319 72 2854, Version A, dated February 9, 2018. (ii) Reserved. (3) For Safran Helicopter Engines service information identified in this AD, contact Safran Helicopter Engines, S.A., 40220 Tarnos, France; phone: (33) 05 59 74 40 00; fax: (33) 05 59 74 45 15. (4) You may view this service information at FAA, Engine & Propeller Standards Branch, 1200 District Avenue, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7759. (5) You may view this 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/cfr/ibr-locations.html.