2017-12-03: 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 adding the following new airworthiness directive (AD): 2017-12-03 Pratt & Whitney Division: Amendment 39-18918; Docket No. FAA-2016-9405; Directorate Identifier 2016-NE-22-AD. (a) Effective Date This AD is effective July 20, 2017. (b) Affected ADs None. (c) Applicability This AD applies to 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. (d) Subject Joint Aircraft System Component (JASC) of America Code 7321, Fuel Control Turbine Engines. (e) Unsafe Condition This AD was prompted by an unrecoverable engine in-flight shutdown (IFSD) after an ice crystal icing event. We are issuing this AD to prevent failure of the high-pressure turbine (HPT), rotor seizure, 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 Action (1) For an engine with 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 at the next engine shop visit, or before December 1, 2018, whichever occurs first, or, replace the EEC with a part eligible for installation. (2) For an engine with an S/N not listed in Figure 1 to paragraph (g) of this AD, upgrade any EEC software standards earlier than SCN 5B/I at the next engine shop visit, or before July 1, 2024, whichever occurs first, or replace the EEC with a part eligible for installation. Figure 1 to Paragraph (g)--Engine S/Ns ------------------------------------------------------------------------ ------------------------------------------------------------------------ 716402 727272 728741 727103 727280 728743 727134 727281 728748 727152 727282 728779 727158 727286 728785 727189 727287 728795 727202 727288 728806 727204 728709 728811 727231 728715 728812 727239 728716 728820 727240 728719 728824 [[Page 27414]] 727251 728720 728826 727252 728725 728827 727253 728726 728840 727257 728729 728864 727269 728730 728870 ------------------------------------------------------------------------ (h) Installation Prohibition After the effective date of this AD, do not install any software standard earlier than SCN 5B/I into any EEC model number EEC104-40 or EEC104-60. (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 without subsequent engine maintenance does not constitute an engine shop visit. (j) Alternative Methods of Compliance (AMOCs) (1) 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. (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 Clark, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7088; fax: 781-238-7199; email: kevin.m.clark@faa.gov. (2) PW Alert Service Bulletin PW2000 A73-170, dated July 14, 2016, which is not incorporated by reference in this AD, can be obtained from PW, using the contact information in paragraph (k)(3) of this AD. (3) 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.(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. (l) Material Incorporated by Reference None.