2024-03-05: Turbine Engine Reduction Gear

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by: a. Removing Airworthiness Directive 2022-13-16, Amendment 39-22102 (87 FR 37986, June 27, 2022); and Airworthiness Directive 2022-14-12, Amendment 39-22117 (87 FR 42066, July 14, 2022); and b. Adding the following new airworthiness directive: 2024-03-05 GE Aviation Czech s.r.o. (Type Certificate Previously Held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.): Amendment 39-22675; Docket No. FAA-2023-2149; Project Identifier MCAI-2023-00136-E. (a) Effective Date This airworthiness directive (AD) is effective April 17, 2024. (b) Affected ADs (1) This AD affects AD 2021-13-07, Amendment 39-21612 (86 FR 31601, June 15, 2021) (AD 2021-13-07). (2) This AD replaces AD 2022-13-16, Amendment 39-22102 (87 FR 37986, June 27, 2022). (3) This AD replaces AD 2022-14-12, Amendment 39-22117 (87 FR 42066, July 14, 2022). (4) This AD affects AD 2023-01-10, Amendment 39-22304 (88 FR 7578, February 6, 2023) (AD 2023-01-10). (c) Applicability This AD applies to GE Aviation Czech s.r.o. (GEAC) (type certificate previously held by WALTER Engines a.s., Walter a.s., and MOTORLET a.s.) Model M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E-11S, and M601F engines. (d) Subject Joint Aircraft System Component (JASC) Code 7210, Turbine Engine Reduction Gear. (e) Unsafe Condition This AD was prompted by the manufacturer revising the airworthiness limitations section (ALS) of the existing engine maintenance manual (EMM) to introduce new and more restrictive tasks and limitations and associated thresholds and intervals for life-limited parts. The FAA is issuing this AD to prevent 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. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Except as specified in paragraph (h) of this AD: Perform all required actions within the compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2023-0020, dated January 23, 2023 (EASA AD 2023-0020). (2) The action required by paragraph (g)(1) of this AD may be performed by the owner/operator (pilot) holding at least a private pilot certificate and must be entered into the aircraft records showing compliance with this AD in accordance with 14 CFR 43.9(a) and 91.417(a)(2)(v). The record must be maintained as required by 14 CFR 91.417, 121.380, or 135.439. (h) Exceptions to EASA AD 2023-0020 (1) Where EASA AD 2023-0020 defines the AMP as "The Aircraft Maintenance Programme (AMP) contains the tasks on the basis of which the scheduled maintenance is conducted to ensure the continuing airworthiness of each operated engine," replace that text with "the aircraft maintenance program containing the tasks on the basis of which the scheduled maintenance is conducted to ensure the continuing airworthiness of each operated airplane." (2) Where EASA AD 2023-0020 specifies the ALS as "The Airworthiness Limitations Section of the GEAC Engine Maintenance Manual (EMM) No. 0982309 Revision 21," replace that text with "The Airworthiness Limitations Section of the GEAC Engine Maintenance Manual (EMM) No. 0982309 Revision 22." The ALS in Revision 22 of the EMM is unchanged from Revision 21. (3) Where EASA AD 2023-0020 refers to its effective date, this AD requires using the effective date of this AD. (4) Where paragraph (3) of EASA AD 2023-0020 specifies "Within 12 months after the effective date of this AD, revise the approved AMP," replace that text with "Within 90 days after the effective date of this AD, revise the ALS of the existing approved engine maintenance or inspection program, as applicable." (5) This AD does not require compliance with paragraphs (1), (2), (4), and (5) of EASA AD 2023-0020. (6) This AD does not adopt the Remarks paragraph of EASA AD 2023-0020. (i) Provisions for Alternative Actions and Intervals After performing the actions required by paragraph (g) of this AD, no alternative actions and associated thresholds and intervals, including life limits, are allowed unless they are approved as specified in the provisions of the "Ref. Publications" section of EASA AD 2023-0020. (j) Terminating Action for Certain Actions Required by Affected ADs (1) Accomplishing the actions required by paragraph (g) of this AD terminates the requirements of paragraphs (g)(1) through (3) of AD 2021-13-07 for model M601D-11, M601E-11, M601E-11A, M601E-11AS, M601E-11S, and M601F engines only. (2) Accomplishing the actions required by paragraph (g) of this AD terminates the requirements of paragraphs (g)(1) through (3) of AD 2023-01-10 for model M601E-11, M601E-11A, M601E-11AS, M601E-11S, and M601F engines only. (k) Alternative Methods of Compliance (AMOCs) (1) The Manager, International Validation 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 International Validation Branch, send it to the attention of the person identified in paragraph (l) of this AD and email 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. (l) Additional Information For more information about this AD, contact Barbara Caufield, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (781) 238-7146; email: [email protected]. (m) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference 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) European Union Aviation Safety Agency (EASA) AD 2023-0020, dated January 23, 2023. (ii) [Reserved] (3) For EASA AD 2023-0020, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000; email: [email protected]; website: easa.europa.eu. You may find this EASA AD on the EASA website at ad.easa.europa.eu. (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 (817) 222-5110. (5) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit: www.archives.gov/federal-register/cfr/ibr-locations or email: [email protected]. Issued on February 7, 2024. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division,Aircraft Certification Service. [FR Doc. 2024-05247 Filed 3-12-24; 8:45 am]BILLING CODE 4910-13-P