2026-13-09: Turbine Section

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: 2026-13-09 Pratt & Whitney Canada Corp.: Amendment 39-23391; Docket No. FAA-2026-4665; Project Identifier MCAI-2026-00553-E. (a) Effective Date This airworthiness directive (AD) is effective July 14, 2026. (b) Affected ADs None. (c) Applicability This AD applies to all Pratt & Whitney Canada Corp. (P&WC) Model PW210A, PW210A1, and PW210S engines. (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine Section. (e) Unsafe Condition This AD was prompted by reports of circumferential cracks found at the turbine exhaust frame external surface caused by thermal stress from engine starts. The FAA is issuing this AD to prevent failure of the turbine exhaust frame. The unsafe condition, if not addressed, could result in turbine exhaust frame failure, which could lead to loss of axial containment, release of parts, and damage to the helicopter. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Definition For the purpose of this AD, an "engine start" includes the start of an engine for any reason, even if it is not followed by a flight. (h) Required Actions Except as specified in paragraphs (i) and (j) of this AD: Perform all required actions within the compliance times specified in, and in accordance with, Transport Canada AD CF-2026-23, dated May 29, 2026 (Transport Canada AD CF-2026-23). (i) Exceptions to Transport Canada AD CF-2026-23 (1) Where Transport Canada AD CF-2026-23 refers to its effective date, this AD requires using the effective date of this AD. (2) Where Transport Canada AD CF-2026-23 requires compliance in terms of hours air time, this AD requires using hours time-in-service. (j) No Reporting Requirement Although the service material referenced in Transport Canada AD CF-2026-23 specifies to submit certain information to the manufacturer, this AD does not include that requirement. (k) Alternative Methods of Compliance (AMOCs) The Manager, AIR-520 Continued Operational Safety 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 AIR-520 Continued Operational Safety Branch, send it to the attention of the person identified in paragraph (l) of this AD and email to AMOC@faa.gov. 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, 2200 South 216th Street, Des Moines, WA 98198; phone: (781) 238-7146; email: barbara.caufield@faa.gov. (m) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this material as applicable to do the actions required by this AD, unless the AD specifies otherwise. (i) Transport Canada AD CF-2026-23, dated May 29, 2026. (ii) [Reserved]. (3) For Transport Canada material identified in this AD, contact Transport Canada, Transport Canada National Aircraft Certification, 159 Cleopatra Drive, Nepean, Ontario, K1A 0N5, Canada; phone: (888) 663-3639; email: tc.airworthinessdirectives-consignesdenavigabilite.tc@tc.gc.ca. You may find the Transport Canada material on the Transport Canada website at tc.canada.ca/en/aviation. (4) You may view this material at the 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 fr.inspection@nara.gov . Issued on June 24, 2026. Lona C. Saccomando, Acting Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2026-13058 Filed 6-25-26; 4:15 pm]BILLING CODE 4910-13-P