2025-07-04: Standard practices/structures

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: 2025-07-04 Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.): Amendment 39-23005; Docket No. FAA-2024-1703; Project Identifier MCAI-2023-01054-T. (a) Effective Date This airworthiness directive (AD) is effective May 27, 2025. (b) Affected ADs None. (c) Applicability This AD applies to all Airbus Canada Limited Partnership (Type Certificate previously held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Model BD-500-1A11 airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 51, Standard practices/structures. (e) Unsafe Condition This AD was prompted by a design review of aircraft structural and stress reports that resulted in a revision of operational loads for some aircraft flight phases, affecting certain aircraft sections. The FAA is issuing this AD to address in-service repairs in some structural areas that require verification and possibly further repair. The unsafe condition, if not addressed, could result in negative margins for the load envelopes. (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-2023-70, dated October 5, 2023 (Transport Canada AD CF-2023-70). (h) Exception to Transport Canada AD CF-2023-70 (1) Where Transport Canada AD CF-2023-70 refers to its effective date, this AD requires using the effective date of this AD. (2) Where the definition of "Affected Structure" in Transport Canada AD CF-2023-70 specifies "as identified in Service Bulletin (SB) BD500-530012, Issue 001, dated 13 September 2023 or later revisions approved by the Chief, Continuing Airworthiness, Transport Canada," this AD requires replacing that text with "as identified in Airbus Canada Limited Partnership Service Bulletin BD500-530012, Issue 001, dated September 13, 2023; or Airbus Canada Limited Partnership Service Bulletin BD500-530012, Issue 002, dated March 6, 2024." (3) Where paragraph 1.2.1 of Airbus Canada Limited Partnership Service Bulletin BD500-530012, Issue 001, dated September 13, 2023, specifies "Airbus Canada specific Repair Engineering Order (REO) with an issue date later than December 31, 2022 have already been validated and therefore do not require an additional approved disposition;" and where paragraph 1.2.1 of Airbus Canada Limited Partnership Service Bulletin BD500-530012, Issue 002, dated March 6, 2024, specifies "Airbus Canada specific Repair Engineering Orders (REO) with an issue date later than December 31, 2022 have already been validated and therefore do not require an additional approved disposition;" this AD requires replacing that text with "Airbus Canada specific Repair Engineering Orders (REOs) with an issue date later than December 31, 2022, and Generic Repair Engineering Orders (GREOs) identified in table 1 to paragraph (h)(3) of AD 2025-07-04, have already been validated and therefore do not require an additional approved disposition." Table 1 to Paragraph (h)(3)-Acceptable GREOs BILLING CODE 4910-13-P ER22AP25.000 ER22AP25.001 ER22AP25.002 ER22AP25.003 ER22AP25.004 ER22AP25.005 ER22AP25.006 ER22AP25.007 ER22AP25.008 ER22AP25.009 ER22AP25.010 ER22AP25.011 ER22AP25.012 ER22AP25.013 ER22AP25.014 ER22AP25.015 ER22AP25.016 ER22AP25.017 (i) Additional AD Provisions The following provisions also apply to this AD: (1) 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 responsible Flight Standards Office, as appropriate. If sending information directly to the manager of AIR-520, Continued Operational Safety Branch, send it to the attention of the person identified in paragraph (j) of this AD and email 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, AIR-520, Continued Operational Safety Branch, FAA; or Transport Canada; or Airbus Canada Limited Partnership's Transport Canada Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. (j) Additional Information For more information about this AD, contact Deep Gaurav, Aviation Safety Engineer, FAA, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 817-228-3731; email: [email protected]. (k) 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 this AD specifies otherwise. (i) Transport Canada AD CF-2023-70, dated October 5, 2023. (ii) Airbus Canada Limited Partnership Service Bulletin BD500-530012, Issue 001, dated September 13, 2023. (iii) Airbus Canada Limited Partnership Service Bulletin BD500-530012, Issue 002, dated March 6, 2024. (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; telephone 888-663-3639; email [email protected]; website at tc.canada.ca/en/aviation. (4) For Airbus Canada material identified in this AD, contact Airbus Canada Limited Partnership, 13100 Henri-Fabre Boulevard, Mirabel, Québec J7N 3C6, Canada; telephone 450-476-7676; email [email protected]; website a220world.airbus.com. (5) You may view this material 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. (6) 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 April 14, 2025. Peter A. White, Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2025-06841 Filed 4-21-25; 8:45 am]BILLING CODE 4910-13-P