2026-10-10: Equipment/furnishings

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: 2026-10-10 Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.): Amendment 39-23350; Docket No. FAA-2025-0199; Project Identifier MCAI-2024-00332-T. (a) Effective Date This airworthiness directive (AD) is effective July 1, 2026. (b) Affected ADs None. (c) Applicability This AD applies to all Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 25, Equipment/furnishings. (e) Unsafe Condition This AD was prompted by certification testing that found that environmental control system (ECS) ducts manufactured using material APF1180-7781 failed the flammability test requirements established for compliance. The FAA is issuing this AD to address noncompliant ECS ducts that could cause an inability to contain a fire within the cargo compartment. The unsafe condition, if not addressed, could result in an uncontrolled fire. (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-2025-10, dated February 27, 2025 (Transport Canada AD CF-2025-10). (h) Exception to Transport Canada AD CF-2025-10 (1) Where Transport Canada AD CF-2025-10 refers to its effective date, this AD requires using the effective date of this AD. (2) Where Transport Canada AD CF-2025-10 refers to June 20, 2024 (the effective date of Transport Canada AD CF-2024-21), this AD requires using the effective date of this AD. (3) Where the first paragraph under Part 1 of Transport Canada AD CF-2025-10 specifies a compliance time for the inspection and retrofit, for this AD the compliance time is at the later of the times specified in paragraphs (h)(3)(i) or (ii) of this AD: (i) Prior to the accumulation of 9,350 total flight hours or within 60 months after the effective date of this AD, whichever occurs first. (ii) Within 30 days after the effective date of this AD. (4) Where the Safran material referenced in Transport Canada AD CF-2025-10 specifies to drill holes, this AD allows identifying and marking the new locations for the inserts prior to drilling the holes. (5) Where the Safran material referenced in Transport Canada AD CF-2025-10 specifies accomplishing step 3.D.(8) after accomplishing steps 3.D.(6) and 3.D.(7), this AD allows accomplishing step 3.D.(8) concurrently with or after step 3.D.(5). (6) Where the Safran material referenced in Transport Canada AD CF-2025-10 specifies "mark the holes position", this AD requires replacing that text with "mark the holes position and drill the holes". (7) Where the second paragraph under Part II of Transport Canada AD CF-2025-10 specifies "The use of the Accomplishment Instructions of Safran Cabin Service Bulletin F493000-50-06 as contained within Airbus Canada SB BD500-501003 Issue 001, dated 21 December 2023, or Issue 002, dated November 15, 2024, prior to the effective date of this AD, also meet the intent of Part II of this AD", this AD requires replacing that text with "The use of the Accomplishment Instructions of Safran Cabin Service Bulletin F493000-50-06 as contained within Airbus Canada SB BD500-501003 Issue 001, dated 21 December 2023, or Issue 002, dated November 15, 2024, prior to the effective date of this AD, also meet the intent of Part II of this AD, provided the ceiling panel liners in the cargo compartments have been re-identified in accordance with the procedure in Section 3 of Part B of the Accomplishment Instructions of the ACLP SB". (i) No Reporting Requirement Although the material referenced in Transport Canada AD CF-2025-10 specifies to submit certain information to the manufacturer, this AD does not include that requirement. (j) 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 the Continued Operational Safety Branch, send it to the attention of the person identified in paragraph (k) 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 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. (3) Required for Compliance (RC): Except as required by paragraphs (i) and (j)(2) of this AD, if any material contains procedures or tests that are identified as RC, those procedures and tests must be done to comply with this AD; any procedures or tests that are not identified as RC are recommended. Those procedures and tests that are not identified as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the procedures and tests identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to procedures or tests identified as RC require approval of an AMOC. (k) Additional Information For more information about this AD, contact Brenda L. Buitrago, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 516-288-7368; email: Brenda.L.Buitrago.Perez@faa.gov. (l) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference 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-2025-10, dated February 27, 2025. (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; telephone 888-663-3639; email TC.AirworthinessDirectives-Consignesdenavigabilite.TC@tc.gc.ca; website tc.canada.ca/en/aviation. (4) 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. (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 May 11, 2026. Lona C. Saccomando, Acting Deputy Director, Integrated Certificate Management Division,Aircraft Certification Service. [FR Doc. 2026-10489 Filed 5-26-26; 8:45 am]BILLING CODE 4910-13-P