2018-14-10: Fuel Control Turbine Engines

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) 2017-12-03, Amendment 39-18918 (82 FR 27411), and adding the following new AD: 2018-14-10 Pratt & Whitney Division: Amendment 39-19330; Docket No. FAA-2017-1107; Product Identifier 2016-NE-22-AD. (a) Effective Date This AD is effective September 28, 2018. (b) Affected ADs This AD replaces AD 2017-12-03, Amendment 39-18918 (82 FR 27411, June 15, 2017). (c) Applicability This AD applies to: (1) All Pratt & Whitney Division (PW) PW2037, PW2037M, and PW2040 turbofan engines with electronic engine control (EEC), model number EEC104-40 or EEC104-60, installed, with an EEC software standard earlier than SCN 5B/I; and (2) All PW PW2037, PW2037M, and PW2040 turbofan engines with EEC, model number EEC104-1, with part numbers (P/Ns) 1B7484, 1B7486, 1B7984, or 1B7985, installed, with an EEC software standard earlier than SCN 27A. (d) Subject Joint Aircraft System Component (JASC) Code 7321, Fuel Control Turbine Engines. (e) Unsafe Condition This AD was prompted by an unrecoverable engine in-flight shutdown after an ice crystal icing event. We are issuing this AD to prevent failure of the high-pressure turbine and rotor seizure. The unsafe condition, if not corrected, could result in failure of one or more engines, loss of thrust control, and loss of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) For an engine with an EEC model number EEC104-40 or EEC104- 60 and a serial number (S/N) listed in Figure 1 to paragraph (g) of this AD, upgrade any EEC software standards earlier than SCN 5B/I or replace the EEC with a part eligible for installation at the next engine shop visit, or before December 1, 2018, whichever occurs first. (2) For an engine with an EEC model number EEC104-40 or EEC104- 60 and an S/N not listed in Figure 1 to paragraph (g) of this AD, upgrade any EEC software standards earlier than SCN 5B/I or replace the EEC with a part eligible for installation at the next engine shop visit, or before July 1, 2024, whichever occurs first. (3) For an engine with an EEC model number EEC104-1 with P/N 1B7484, 1B7486, 1B7984, or 1B7985, upgrade any EEC software standards earlier than SCN 27A or replace the EEC with a part eligible for installation at the next engine shop visit, or before July 1, 2024, whichever occurs first. [[Page 42774]] [GRAPHIC] [TIFF OMITTED] TR24AU18.400 (h) Installation Prohibition After the effective date of this AD, do not installany software standard earlier than: (1) SCN 5B/I into any EEC model number EEC104-40 or EEC104-60; or (2) SCN 27A into any EEC model number EEC104-1 with P/N 1B7484, 1B7486, 1B7984, or 1B7985. (i) Definition For the purpose of this AD, an ``engine shop visit'' is the induction of an engine into the shop for maintenance involving the separation of pairs of major mating engine flanges, except that the separation of engine flanges solely for the purposes of transportation of the engine without subsequent engine maintenance does not constitute an engine shop visit. (j) 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, sendit to the attention of the person identified in paragraph (k)(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 district office/certificate holding district office. (k) Related Information (1) For more information about this AD, contact Kevin M. Clark, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone: 781-238-7088; fax: 781-238-7199; email: kevin.m.clark@faa.gov. (2) For service information identified in this AD, contact Pratt & Whitney Division, 400 Main St., East Hartford, CT, 06118; phone: 800-565-0140; fax: 860-565-5442. You may view this referenced service information at the FAA, Engine & Propeller Standards Branch, 1200 District Avenue, Burlington, MA, 01803. For information on the availability of this material at the FAA, call 781-238-7759. (l) Material Incorporated by Reference None.