2015-15-03: Power loss in ice crystal icing (ICI) conditions

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): 2015-15-03 General Electric Company: Amendment 39-18212; Docket No. FAA-2015-0165; Directorate Identifier 2015-NE-02-AD. (a) Effective Date This AD is effective August 24, 2015. (b) Affected ADs None. (c) Applicability This AD applies to all General Electric Company (GE) GEnx-1B model turbofan engines with full authority digital engine control (FADEC) software version B175 or earlier, installed, and GEnx-2B model turbofan engines with FADEC software version C065 or earlier, installed. (d) Unsafe Condition This ADwas prompted by reports of GEnx-1B and GEnx-2B engines experiencing power loss in ice crystal icing (ICI) conditions. We are issuing this AD to prevent engine failure, loss of thrust control, and damage to the airplane. (e) Compliance Comply with this AD within the compliance times specified, unless already done. (1) Thirty days after the effective date of this AD, do not operate any GE GEnx-1B engine with FADEC software version B175 or earlier, installed in the electronic engine control (EEC). (2) Thirty days after the effective date of this AD, do not operate any GE GEnx-2B engine with FADEC software version C065 or earlier, installed in the EEC. (f) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs to 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. (g) Related Information (1) For more information about this AD, contact Christopher McGuire, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7120; fax: 781-238-7199; email: chris.mcguire@faa.gov. (2) GE GEnx-1B Service Bulletin (SB) No. 73-0036 R00, dated January 6, 2015, and GE GEnx-2B SB No. 73-0035 R00, dated September 16, 2014, which are not incorporated by reference in this AD, can be obtained from GE using the contact information in paragraph (g)(3) of this AD. (3) For service information identified in this proposed AD, contact General Electric Company, GE Aviation, Room 285, 1 Neumann Way, Cincinnati, OH 45215; phone: 513-552-3272; email: geae.aoc@ge.com. (4) You may view this 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. (h) Material Incorporated by Reference None.