2026-09-11: 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: a. Removing Airworthiness Directive (AD) 2023-20-05, Amendment 39-22564 (88 FR 68454, October 4, 2023); and b. Adding the following new AD: 2026-09-11 Dassault Aviation: Amendment 39-23332; Docket No. FAA-2026-0739; Project Identifier MCAI-2025-01040-T. (a) Effective Date This airworthiness directive (AD) is effective June 18, 2026. (b) Affected ADs This AD replaces AD 2023-20-05, Amendment 39-22564 (88 FR 68454, October 4, 2023) (AD 2023-20-05). (c) Applicability This AD applies to Dassault Aviation Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5, and 20-F5 airplanes, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2025-0126, dated May 28, 2025 (EASA AD 2025-0126). (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 address fatigue cracking, damage, and corrosion 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) Retained Revision of the Existing Maintenance or Inspection Program, With a New Terminating Action This paragraph restates the requirements of paragraph (i) of AD 2023-20-05, with a new terminating action. Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2023-0062, dated March 20, 2023 (EASA AD 2023-0062). Accomplishing the revision of the existing maintenance or inspection program required by paragraph (j) of this AD terminates the requirements of this paragraph. (h) Retained Exceptions to EASA AD 2023-0062, With No Changes This paragraph restates the exceptions specified in paragraph (j) of AD 2023-20-05, with no changes. (1) This AD does not adopt the requirements specified in paragraphs (1) and (2) of EASA AD 2023-0062. (2) Paragraph (3) of EASA AD 2023-0062 specifies revising "the approved AMP" within 12 months after its effective date, but this AD requires revising the existing maintenance or inspection program, as applicable, within 90 days after November 8, 2023 (the effective date of AD 2023-20-05). (3) The initial compliance time for doing the tasks specified in paragraph (3) of EASA AD 2023-0062 is at the applicable "limitations" and "associated thresholds" as incorporated by the requirements of paragraph (3) of EASA AD 2023-0062, or within 90 days after November 8, 2023 (the effective date of AD 2023-20-05), whichever occurs later. (4) This AD does not adopt the provisions specified in paragraphs (4) and (5) of EASA AD 2023-0062. (5) This AD does not adopt the "Remarks" section of EASA AD 2023-0062. (i) Retained Restrictions on Alternative Actions and Intervals, With a New Exception This paragraph restates the requirements of paragraph (k) of AD 2023-20-05, with a new exception. Except as required by paragraph (j) of this AD, after the maintenance or inspection program has been revised as required by paragraph (g) of this AD, no alternative actions ( e.g., inspections) or intervals are allowed unless they are approved as specified in the provisions of the "Ref. Publications" section of EASA AD 2023-0062. (j) New Revision of the Existing Maintenance or Inspection Program Except as specified in paragraph (k) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 2025-0126. Accomplishing the revision of the existing maintenance or inspection program required by this paragraph terminates the requirements of paragraph (g) of this AD. (k) Exceptions to EASA AD 2025-0126 (1) This AD does not adopt the requirements specified in paragraphs (1) and (2) of EASA AD 2025-0126. (2) Paragraph (3) of EASA AD 2025-0126 specifies revising "the approved AMP," within 12 months after its effective date, but this AD requires revising the existing maintenance or inspection program, as applicable, within 90 days after the effective date of this AD. (3) The initial compliance time for doing the tasks specified in paragraph (3) of EASA AD 2025-0126 is at the applicable "limitations" and "associated thresholds" as incorporated by the requirements of paragraph (3) of EASA AD 2025-0126, or within 90 days after the effective date of this AD, whichever occurs later. (4) This AD does not adopt the provisions specified in paragraphs (4) and (5) of EASA AD 2025-0126. (5) This AD does not adopt the "Remarks" section of EASA AD 2025-0126. (l) New Provisions for Alternative Actions and Intervals After the existing maintenance or inspection program has been revised as required by paragraph (j) of this AD, no alternative actions ( e.g., inspections) and intervals are allowed unless the actions and intervals are approved as specified in the provisions of the "Ref. Publications" section of EASA AD 2025-0126. (m) 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 (n) 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 EASA; or Dassault Aviation's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature. (n) Additional Information For more information about this AD, contact Kimi Kim, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: 781-238-7693; email: 9-AVS-AIR-BACO-COS@faa.gov. (o) 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. (3) The following material was approved for IBR on June 18, 2026. (i) European Union Aviation Safety Agency (EASA) AD 2025-0126, dated May 28, 2025. (ii) [Reserved] (4) The following material was approved for IBR on November 8, 2023 (88 FR 68454, October 4, 2023). (i) EASA AD 2023-0062, dated March 20, 2023. (ii) [Reserved] (5) For EASA material identified in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu. You may find this material on the EASA website at ad.easa.europa.eu. (6) 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. (7) 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 April 28, 2026. Steven W. Thompson, Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2026-09660 Filed 5-13-26; 8:45 am]BILLING CODE 4910-13-P