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2020-08-01 |
GENERAL ELECTRIC COMPANY: Amendment 39-21107; Docket No. FAA-2019-0665; Project Identifier 2019-NE-25-AD. |
(a) EFFECTIVE DATE This AD is effective May 15, 2020. (b) AFFECTED ADS None. (c) APPLICABILITY This AD applies to General Electric Company (GE) CF34-1A, CF34-3A, CF34-3A1, CF34-3A2, CF34-3B and CF34-3B1 model turbofan engines having a fan blade with a part number listed in Planning Information, para- graph 1.A., of GE Service Bulletin (SB) CF34-AL S/B 72-0314, dated September 27, 2017 or of GE SB CF34-BJ S/B 72-0306, dated September 27, 2017, and with any serial number listed in paragraph 4., Appendix A, of GE SB CF34-AL S/B 72-0314 or of GE SB CF34-BJ S/B 72-0306. (d) SUBJECT Joint Aircraft System Component (JASC) Code 7220, Turbine Engine Inlet Section. (e) UNSAFE CONDITION This AD was prompted by an in-flight failure of a fan blade that led to an in-flight shutdown. The FAA is issuing this AD to prevent failure of the fan blade. The unsafe condition, if not addressed, 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 al- ready done. (g) REQUIRED ACTIONS Remove the affected fan blades from service within 90 days after the effective date of this AD and replace with a part eligible for install -ation. (h) DEFINITION A part that is eligible for installation is any fan blade other than those identified by paragraph (c) of this AD or a fan blade that has been repaired per GE SB CF34-AL S/B 72-0148, Revision 05, dated July 23, 2015; or GE SB CF34-BJ S/B 72-0123, Revision 04, dated October 21, 2015. (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 in- spector 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 ANE-AD-AMOC@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal in- spector, 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 Christopher McGuire, Aero- space Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone: 781-238-7120; fax: 781-238-7199; email: chris.mcguire@ faa.gov. (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. (i) General Electric Company (GE) Service Bulletin (SB) CF34-BJ S/B 72- 0306, dated September 27, 2017. (ii) GE SB CF34-AL S/B 72-0314, dated September 27, 2017. (3) For GE 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: aviation.fleetsupport@ge.com. (4) You may view this service information at FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA, 01803. For in- formation on the availability of this material at the FAA, call 781- 238-7759. (5) 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, email fedreg.legal@nara.gov, or go to: https://www.archives.gov/federal- register/cfr/ibr-locations.html. Issued on April 3, 2020. Lance T. Gant, Director, Compliance & Airworthi- ness Division, Aircraft Certification Service. FOR FURTHER INFORMATION CONTACT: Christopher McGuire, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone: 781- 238-7120; fax: 781-238-7199; email: chris.mcguire@faa.gov.
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DEPARTMENT OF TRANSPORTATION
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