2016-04-14: Tachometer box

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): 2016-04-14 Turbomeca S.A.: Amendment 39-18408; Docket No. FAA-2015- 4070; Directorate Identifier 2015-NE-31-AD. (a) Effective Date This AD becomes effective April 1, 2016. (b) Affected ADs None. (c) Applicability (1) This AD applies to Turbomeca S.A. Arriel 1E2 turboshaft engines with tachometer boxes with the following part number (P/N) and serial number (S/N) combinations: (i) P/N 9580116170--all S/Ns (ii) P/N 9580116260--all S/Ns (iii) P/N 9580116900--all S/Ns (iv) P/N 9580117110--all S/Ns (v) P/N 9580117550--all S/Ns 1499 and below with or without suffix letters and all S/Ns 1500 and above that do not contain the suffix letters EL. (2) This AD applies only to Turbomeca S.A. Arriel 1E2 turboshaft engines with [[Page 9746]] tachometer boxes identified in paragraph (c)(1) of this AD that also have installed electrical connectors labeled as P10106, P10098, and P10108; or P11F, P13F, and P15F. (d) Reason This AD was prompted by reports of uncommanded in-flight shutdowns (IFSDs). We are issuing this AD to prevent failure of the tachometer box, which could lead to failure of the engine, IFSD, and loss of control of the helicopter. (e) Actions and Compliance Comply with this AD within the compliance times specified, unless already done. (1) Within 1,600 flight hours after the effective date of this AD, remove the affected tachometer box from the engine. (2) Reserved. (f) Credit for Previous Action You may take credit for the action required by paragraph (e) of this AD if you performed the action before the effective date of this AD in accordance with Turbomeca S.A. Mandatory Service Bulletin 292 77 0844, Version A, dated March 4, 2015. (g) 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. (h) Related Information (1) For more information about this AD, contact Philip Haberlen, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7770; fax: 781-238-7199; email: philip.haberlen@faa.gov. (2) Refer to MCAI European Aviation Safety Agency AD 2015-0175, dated August 24, 2015, which includes Mandatory Service Bulletin No. 292 77 0844, Version B, dated July 6, 2015, for related information. You may examine the MCAI in the AD docket on theInternet at http://www.regulations.gov by searching for and locating Docket No. FAA- 2015-4070. (3) Turbomeca S.A. Mandatory Service Bulletin No. 292 77 0844, Version B, dated July 6, 2015, which is not incorporated by reference in this AD, can be obtained from Turbomeca S.A., using the contact information in paragraph (h)(4) of this AD. (4) For service information identified in this AD, contact Turbomeca S.A., 40220 Tarnos, France; phone: 33 (0)5 59 74 40 00; fax: 33 (0)5 59 74 45 15. (5) You may view this service information at the FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. (i) Material Incorporated by Reference None.