2024-22-04: Fuselage

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 (AD) 2021-09-03, Amendment 39-21516 (86 FR 20266, April 19, 2021; corrected April 27, 2021 (86 FR 22111)); and b. Adding the following new AD: 2024-22-04 Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.): Amendment 39-22875; Docket No. FAA-2024-0464; Project Identifier MCAI-2022-01556-T. (a) Effective Date This airworthiness directive (AD) is effective December 17, 2024. (b) Affected ADs This AD replaces AD 2021-09-03, Amendment 39-21516 (86 FR 20266, April 19, 2021); corrected April 27, 2021 (86 FR 22111) (AD 2021-09-03). (c) Applicability This AD applies to Airbus Canada Limited Partnership (Type Certificate previously held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Model BD-500-1A10 and BD-500-1A11 airplanes, certificated in any category, as identified in Transport Canada AD CF-2022-67, dated December 6, 2022 (Transport Canada AD CF-2022-67). (d) Subject Air Transport Association (ATA) of America Code 25, Equipment/furnishings; 53, Fuselage. (e) Unsafe Condition This AD was prompted by reports of the failure of emergency locator transmitter (ELT) antennas, including an in-service failure that occurred before the repetitive replacement interval required by AD 2021-09-03, and by the development of a terminating action. The FAA is issuing this AD to address ELT antenna failure. The unsafe condition, if not addressed, could result in loss of the ELT antenna and the development of fuselage cracks that can result in an inability to maintain cabin pressure. (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-2022-67. (h) Exception to Transport Canada AD CF-2022-67 (1) Where Transport Canada AD CF-2022-67 refers to its effective date, this AD requires using the effective date of this AD. (2) Where Transport Canada AD CF-2022-67 refers to April 1, 2021 (the effective date of Transport Canada AD CF-2021-10, dated March 18, 2021), this AD requires using May 4, 2021 (the effective date of AD 2021-09-03). (3) Where Transport Canada AD CF-2022-67 refers to hours air time, this AD requires using flight hours. (4) Where paragraph C of Transport Canada AD CF-2022-67 specifies to "replace the ELT antenna with a new aluminum ELT antenna and inspect the exterior fuselage skin around the ELT antenna attachment holes for damage, repairing any damage found before further flight," this AD requires replacing that text with "replace the ELT antenna with a new aluminum ELT antenna, including doing an inspection of the exterior fuselage skin around the ELT antenna attachment holes for damage, and, before further flight, repair any damage found." (i) 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 (j) of this AD. Information may be emailed to: [email protected]. (i) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (ii) AMOCs approved previously for AD 2021-09-03 are not approved as AMOCs for the corresponding provisions of Transport Canada AD CF-2022-67 that are required by paragraph (g) of this AD. (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 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 Yaser Osman, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 860-386-1786; email: [email protected]. (k) 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-2022-67, dated December 6, 2022. (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 [email protected]; 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 [email protected] . Issued on October 24, 2024. Peter A. White, Deputy Director, Integrated Certificate Management Division, Aircraft Certification Service. [FR Doc. 2024-25977 Filed 11-8-24; 8:45 am]BILLING CODE 4910-13-P