2021-13-07: Engine (Turbine/Turboprop)

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 adding the following new airworthiness directive: \n\n2021-13-07 GE Aviation Czech s.r.o (Type Certificate previously held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.): Amendment 39-21612; Docket No. FAA-2021-0499; Project Identifier MCAI-2021- 00571-E. \n\n(a) Effective Date \n\n\n\tThis airworthiness directive (AD) is effective June 30, 2021. \n\n(b) Affected ADs \n\n\n\tNone. \n\n(c) Applicability \n\n\n\tThis AD applies to GE Aviation Czech s.r.o. (GEAC) M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E-11S, and M601F model turboprop engines. \n\n(d) Subject \n\n\n\tJoint Aircraft System Component (JASC) Code 7200, Engine (Turbine/Turboprop). \n\n(e) Unsafe Condition \n\n\n\tThis AD was prompted by the manufacturer finding errors in the Airworthiness Limitation Section (ALS) of the Engine Maintenance Manual (EMM), including errors in the formula to determine the consumed equivalent flight cycles (FCs) of critical parts and errors with certain part numbers (P/Ns). The manufacturer also determined that the life limit of compressor case, P/N M601-154.61, installed on certain GEAC M601E model engines is not listed in the ALS of the applicable EMM. The FAA is issuing this AD to prevent the failure of the engine. The unsafe condition, if not addressed, could result in uncontained release of a critical part, damage to the engine, and damage to the airplane. \n\n(f) Compliance \n\n\n\tComply with this AD within the compliance times specified, unless already done. \n\n(g) Required Actions \n\n\n\t(1) For all affected GEAC model turboprop engines, within one FC after the effective date of this AD, perform allactions in the Accomplishment Instructions, paragraphs 2.1 through 2.3, of GE Aviation Czech Alert Service Bulletin (ASB) ASB-M601F-72-00-00-0057 (00), ASB-M601E-72-00-00-0106 (00), ASB-M601D-72-00-00-0075 (00), and ASB-M601Z-72-00-00-0057 (00) (single document; formatted as service bulletin identifier (revision number)) (the ASB), dated May 7, 2021. \n\t(2) For GEAC M601E-11, M601E-11A, and M601F model turboprop engines listed in Attachment 1, Group 1 Engines Serial Numbers, in the ASB, before the recalculated life exceeds the critical part's life limit or within one FC after the effective date of this AD, whichever occurs later, replace each critical part. \n\t(3) For GEAC M601D-11, M601E-11AS, and M601E-11S model turboprop engines, before the recalculated life exceeds the critical part's life limit or within 30 days after the effective date of this AD, whichever occurs later, replace each critical part. \n\t(4) For GEAC M601E-11, M601E-11A, M601E-11AS, and M601E-11S model turboprop engines, before the compressor case, P/N M601- 154.61, accumulates 11,000 equivalent FCs or within 350 flight hours from the effective date of this AD, whichever occurs first, remove the compressor case from service and replace it with compressor case, P/N M601-154.6 or P/N M601-154.65. \n\n(h) Installation Prohibition \n\n\n\tAfter the effective date of this AD, do not install onto any airplane an engine with a critical part having a recalculated life that exceeds the critical part's life limit as specified in the Airworthiness Limitation Section (ALS) of the applicable EMM. \n\n(i) No Reporting Requirement \n\n\n\tThe reporting requirement in the Accomplishment Instructions, paragraph 2.2.1.4., of the ASB, is not required by this AD. \n\n((Page 31604)) \n\n(j) Definitions \n\n\n\t(1) For the purpose of this AD, a ''critical part'' is an engine part listed in paragraph 2.3.1, Table B--List of Critical Parts and the Accelerating Factor, of the ASB. \n\t(2) For the purpose of this AD, ''recalculated life'' is the consumed life of the critical part using the recalculation required by (g)(1) of this AD. \n\t(3) For the purpose of this AD, where the ASB says the ''applicable Airworthiness Limitation Section'' use the following: \n\t(i) For affected model engines M601D-1, M601D-11, M601D-11NZ, M601D-2, M601Z: ''the ALS section of GE Aviation Engine Maintenance Manual 0982309.'' \n\t(ii) For affected model engines M601E-11, M601E-11S, M601E-11A, M601E-11AS, M601F, M601FS: ''the ALS section of GE Aviation Engine Maintenance Manual 0982302.'' \n\n(k) Alternative Methods of Compliance (AMOCs) \n\n\n\t(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 personidentified in Related Information. You may email your request to: [email protected]. \n\t(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. \n\n(l) Related Information \n\n\n\t(1) For more information about this AD, contact Barbara Caufield, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: (781) 238-7146; fax: (781) 238- 7199; email: [email protected]. \n\t(2) Refer to European Union Aviation Safety Agency (EASA) Emergency AD 2021-0125-E, dated May 7, 2021, for more information. You may examine the EASA AD in the AD docket at https://www.regulations.gov by searching for and locating it in Docket No. FAA-2021-0499. \n\n(m) Material Incorporated by Reference \n\n\n\t(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. \n\t(2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. \n\t(i) GE Aviation Czech Alert Service Bulletin (ASB) ASB-M601F-72- 00-00-0057 (00), ASB-M601E-72-00-00-0106 (00), ASB-M601D-72-00-00- 0075 (00), and ASB-M601Z-72-00-00-0057 (00) (single document; formatted as service bulletin identifier (revision number)), dated May 7, 2021. \n\t(ii) (Reserved) \n\t(3) For GE Aviation Czech service information identified in this AD, contact GE Aviation Czech s.r.o., Beranov(yacute)ch 65, 199 00 Praha 18, Letnany, Czech Republic; phone: +420 222 538 111; fax: +420 222 538 222. \n\t(4) You may view this service information at FAA, Airworthiness Products Section, Operational Safety Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call (781) 238-7759. \n\t(5) You may view this service information thatis incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email: [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html. \n\n\n\tIssued on June 10, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. (FR Doc. 2021-12659 Filed 6-11-21; 11:15 am) BILLING CODE 4910-13-P