2019-02-04: Turbine section

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) 2018-22-05, Amendment 39-19478 (83 FR 55816, November 8, 2018), and adding the following new AD: 2019-02-04 Engine Alliance: Amendment 39-19551; Docket No. FAA-2019- 0050; Product Identifier 2018-NE-35-AD. (a) Effective Date This AD is effective February 25, 2019. (b) Affected ADs This AD replaces AD 2018-22-05, Amendment 39-19478 (83 FR 55816, November 8, 2018) (``AD 2018-22-05''). (c) Applicability This AD applies to Engine Alliance (EA) GP7270, GP7272, and GP7277 turbofan engines, with a high-pressure turbine (HPT) stator case (HPT case),part number (P/N) 2060M40G02 or 2137M29G01 installed, and with HPT case serial numbers (S/Ns) listed in Planning Information, Table 1, of Engine Alliance Alert Service Bulletin EAGP7-A72-401, Revision 1, dated December 13, 2018, and in Planning Information, Table 1, of Engine Alliance Service Bulletin EAGP7-72-399, dated June 4, 2018. (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine section. (e) Unsafe Condition This AD was prompted by the discovery of a quality escape at a manufacturing facility involving unapproved welds on HPT cases. We are issuing this AD to address failure of the HPT case, which could result in engine fire and damage to the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) For HPT cases listed in Planning Information, Table 1, of Engine Alliance Alert Service Bulletin EAGP7-A72-401, [[Page 2715]] Revision No. 1,dated December 13, 2018, remove the affected HPT case from service within the cycles identified in Table 1 of Engine Alliance Alert Service Bulletin EAGP7-A72-401, Revision No. 1, dated December 13, 2018, after the effective date of this AD. (2) For HPT cases listed in Planning Information, Table 1, of Engine Alliance Service Bulletin EAGP7-72-399, dated June 4, 2018, remove the affected HPT cases from service, using the number of part cycles since new (PCSN) or part cycles since overhaul (PCSO), whichever is less, as specified in Table 1 to paragraph (g)(2) of this AD. [GRAPHIC] [TIFF OMITTED] TR08FE19.000 (3) Replace the removed HPT case with a part eligible for installation before further flight. (h) Definition For the purpose of this AD, a ``part eligible for installation'' is any HPT case not identified in paragraph (c) of this AD or an HPT case listed in this AD that has been inspected and repaired by a method approved by the Manager, ECO Branch, FAA. (i)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, send it to the attention of the person identified in paragraph (j) of this AD. You may email your request to [email protected]. (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. (j) Related Information For more information about this AD, contact Matthew Smith, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7735; fax: 781-238-7199; email: [email protected]. (k)Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (3) The following service information was approved for IBR on February 25, 2019. (i) Engine Alliance Alert Service Bulletin EAGP7-A72-401, Revision No. 1, dated December 13, 2018. (ii) [Reserved] (4) The following service information was approved for IBR on November 23, 2018 (83 FR 55816, November 8, 2018). (i) Engine Alliance Service Bulletin EAGP7-72-399, dated June 4, 2018. (ii) [Reserved] (5) For service information identified in this AD, contact Engine Alliance, 411 Silver Lane, East Hartford, CT 06118; phone: 800-565-0140; email: [email protected]; website: www.engineallianceportal.com. (6) You may view this service information at FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781-238-7759. (7) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.