2017-09-06: Engine

Adoption of the Amendment \n\n\n\tAccordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: \n\nPART 39--AIRWORTHINESS DIRECTIVES \n\n0 1. The authority citation for part 39 continues to read as follows: \n\n\n\tAuthority: 49 U.S.C. 106(g), 40113, 44701. \n\n\n\nSec. 39.13 (Amended) \n\n0 2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 2015-15-03, Amendment 39-18212 (80 FR 42707, July 20, 2015), and adding the following new AD: \n\n2017-09-06: General Electric Company: Amendment 39-18868; Docket No. FAA-2015-0165; Directorate Identifier 2015-NE-02-AD. \n\n(a) Effective Date \n\n\n\tThis AD is effective June 9, 2017. \n\n(b) Affected ADs \n\n\n\tThis AD replaces AD 2015-15-03, Amendment 39-18212 (80 FR 42707, July 20, 2015). This AD also affects AD 2013-24-01, Amendment 39- 17675 (78 FR 70851, November 27, 2013). \n\n(c) Applicability \n\n\n\tThis AD applies to all General Electric Company (GE) GEnx-1B and GEnx-2B turbofan engines. \n\n(d) Unsafe Condition \n\n\n\tThis AD was prompted by GE implementing final design changes that remove the unsafe condition. We are issuing this AD to prevent engine failure, loss of thrust control, and damage to the airplane. \n\n(e) Compliance \n\n\n\tComply with this AD within the compliance times specified, unless already done. \n\t(1) Thirty days after the effective date of this AD, do not operate any GE GEnx-1B engine with electronic engine control (EEC) full authority digital engine control (FADEC) software, version B180 or earlier, installed. \n\t(2) Thirty days after the effective date of this AD, do not operate any GE GEnx-2B engine with EEC FADEC software, version C068 or earlier, installed. \n\t(3) At the next shop visit after the effective date of this AD, remove from service all GE GEnx-2B67, -2B67B, and -2B67/P fan hub stator assembly booster outlet guide vanes, part number B1316-00720, and replace with a part eligible for installation. \n\n(f) Installation Prohibition \n\n\n\tAfter removing any software, version B180 or earlier, for the GE GEnx-1B engines; or software, version C068 or earlier, for the GE GEnx-2B engines, do not operate those engines with any software, version B180 or C068, or earlier. \n\n(g) Definition \n\n\n\tFor 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 case flanges, except for the following situations which do not constitute an engine shop visit: \n\t(1) Separation of engine flanges solely for the purposes of transportation without subsequent maintenance does not constitute an engine shop visit. \n\t(2) Separation of engine flanges solely for the purpose of replacing the fan or propulsor without subsequent maintenance does not constitute an engine shop visit. \n\n(h) Terminating Action \n\n\n\tCompliance with this AD, for all engines installed on a specific airplane, is a terminating action to AD 2013-24-01 for that specific airplane, since it removes the unsafe condition on that specific airplane. \n\t(1) For GEnx-1B engines: \n\t(i) Compliance with paragraphs (e)(1) and (f) of this AD, for all engines on an airplane, is an approved terminating action for that airplane for paragraphs (g) and (i) of AD 2013-24-01. \n\t(ii) Note that paragraph (j) of AD 2013-24-01, which contains post-event inspection requirements, remains in force. \n\t(2) For GEnx-2B engines: \n\t(i) Compliance with paragraphs (e)(2), (e)(3), and (f) of this AD, for all engines on an airplane, is an approved terminating action for that airplane for paragraphs (g) and (h) of AD 2013-24- 01. \n\t(ii) Note that paragraph (j) of AD 2013-24-01, which contains post-event inspection requirements, remains in force. \n\n(i) Alternative Methods of Compliance (AMOCs) \n\n\n\tThe 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. \n\n(j) Related Information \n\n\n\t(1) For more information about this AD, contact Christopher McGuire, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7120; fax: 781-238-7199; email: chris.mcguire@faa.gov. \n\n((Page 21114)) \n\n\n\t(2) GE GEnx-2B Service Bulletin (SB) 72-0241 R00, dated March 16, 2016; GE GEnx-2B SB 73-0041 R00, dated July 2, 2015; and GE GEnx-1B SB 73-0044 R00, dated July 1, 2015 can be obtained from GE, using the contact information in paragraph (j)(3) of this AD. \n\t(3) For service information identified in this AD, contact General Electric Company, GE Aviation, Room 285, 1 Neumann Way, Cincinnati, OH 45215; phone: 513-552-3272; email: geae.aoc@ge.com.