2024-06-05: Time Limits/Maintenance Checks

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 adding the following new airworthiness directive: 2024-06-05 MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.): Amendment 39-22710; Docket No. FAA-2024-0026; Project Identifier MCAI-2023-00776-T. (a) Effective Date This airworthiness directive (AD) is effective May 14, 2024. (b) Affected ADs None. (c) Applicability This AD applies to all MHI RJ Aviation ULC (Type Certificate previously held by Bombardier, Inc.) Model CL-600-2E25 (Regional Jet Series 1000) airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 05, Time Limits/Maintenance Checks. (e) Unsafe Condition This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to prevent potential fatigue cracking and damage in principal structural elements. The unsafe condition, if not addressed, could result in reduced structural integrity of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Requirements Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada AD CF-2023-43, dated June 21, 2023 (Transport Canada AD CF-2023-43). (h) Exceptions to Transport Canada AD CF-2023-43 (1) Where Transport Canada AD CF-2023-43 refers to its effective date, this AD requires using the effective date of this AD. (2) Where paragraph 1. of Transport Canada AD CF-2023-43 specifies to "incorporate the new and revised tasks identified in Table 1 below, in the appropriate chapter within Section 2 and Section 3 of the MRM CSP B-053 Part 2 manual," this AD requires replacing that text with "revise the existing maintenance or inspection program, as applicable, by incorporating the new and revised tasks identified in Table 1." (3) The initial compliance time for doing the tasks specified in paragraph 1. of Transport Canada AD CF-2023-43 is at the applicable "thresholds" and "discard times" as specified in the service information referenced in paragraph 1. of Transport Canada AD CF-2023-43, or within 60 days after the effective date of this AD, whichever occurs later. (4) This AD does not adopt paragraph 2. of Transport Canada AD CF-2023-43. (i) Provisions for Alternative Actions and Intervals After the existing maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions ( e.g., inspections) and intervals are allowed unless they are approved as specified in the provisions of the "Corrective Actions" section of Transport Canada AD CF-2023-43. (j) Additional AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): 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 responsible Flight Standards Office, as appropriate. If sending information directly to the manager of the International Validation Branch, mail it to the address identified in paragraph (k) of this AD. Information may be emailed to [email protected]. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or Transport Canada; or MHI RJ Aviation ULC's Transport Canada Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. (k) Additional Information For more information about this AD, contact Fatin Saumik, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7300; email [email protected]. (l) 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 this AD specifies otherwise. (i) Transport Canada AD CF-2023-43, dated June 21, 2023. (ii) [Reserved] (3) For Transport Canada AD CF-2023-43, contact Transport Canada, Transport Canada National Aircraft Certification, 159 Cleopatra Drive, Nepean, Ontario K1A 0N5, Canada; telephone 888-663-3639; email [email protected]; website tc.canada.ca/en/aviation. (4) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. (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 March 15, 2024. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2024-07390 Filed 4-8-24; 8:45 am]BILLING CODE 4910-13-P