2025-11-11 MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.): Amendment 39-23057; Docket No. FAA-2025-0336; Project Identifier MCAI-2022-00194-T.
(a) Effective Date
This airworthiness directive (AD) is effective July 15, 2025.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) airplanes, certificated in any category, identified in paragraphs (c)(1) through (5) of this AD.
(1) Model CL-600-2C10 (Regional Jet Series 700, 701, and 702) airplanes.
(2) Model CL-600-2C11 (Regional Jet Series 550) airplanes.
(3) Model CL-600-2D15 (Regional Jet Series 705) airplanes.
(4) Model CL-600-2D24 (Regional Jet Series 900) airplanes.
(5) Model CL-600-2E25 (Regional Jet Series 1000) airplanes.
(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 aircraft maintenance manual (AMM) tasks are necessary because failure to adhere to the interval limitations can lead to reduced structural integrity and reduced controllability of the airplane. The FAA is issuing this AD to address reduced structural integrity and reduced controllability of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified, unless already done.
(g) Maintenance or Inspection Program Revision
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-2019-44, dated December 9, 2019 (Transport Canada AD CF-2019-44).
(h) Exception to Transport Canada AD CF-2019-44
(1) Where Transport Canada AD CF-2019-44 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where paragraph 1. of Transport Canada AD CF-2019-44 specifies to ``incorporate the revised Appendix, A2-00, into Part 2 ALI as introduced by Temporary Revision (TR) ALI-0716, dated 13 September 2019, or later revisions of these tasks approved by Transport Canada'', this AD requires replacing that text with ``revise the existing maintenance or inspection program, as applicable, by incorporating the AMM tasks, including the interval limitation, specified in the revised Appendix, A2-00, as introduced by Temporary Revision (TR) ALI-0735, dated April 15, 2020, or later revisions of these tasks approved by Transport Canada. Only the AMM tasks and intervals must be incorporated''.
(3) The initial compliance time for doing the AMM tasks specified in the TR identified in paragraph (h)(2) of this AD is at the later of the times specified in paragraphs (h)(3)(i) and (ii) of this AD.
(i) Before the applicable interval limitation specified in the TR identified in paragraph (h)(2) of this AD since entry into service.
(ii) Within 30 days after the effective date of this AD.
(4) This AD does not adopt paragraphs 2. and 3., which includes the subsequent non-indented paragraphs, of Transport Canada AD CF-2019-44.
(i) No Alternative Actions or 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) or intervals may be used unless the actions and intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (j) of this AD.
(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, 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, 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 Christopher Spencer, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 516-228-7300; email: 9-avs-nyaco-cos@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-2019-44, dated December 9, 2019.
(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. You may find this 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, 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.