# Proposed AD FAA-2025-2553: Dassault Aviation Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2026-07-02
- Products: Dassault
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 26, 2025, 90 FR 46365
- Comments due: November 10, 2025
- Became: [AD 2026-07-02](https://openairdocs.org/ad/2026-07-02)
- Docket: FAA-2025-2553 (https://www.regulations.gov/docket/FAA-2025-2553, where comments are filed)
- Project: MCAI-2025-00186-T
- FR document: 2025-18705
- Official PDF: https://openairdocs.org/files/sha256/fb/36/fb36599a5d9fb75beb480be75cea9370fb2174d1efa5f63d7c278190815f1af3 (from https://www.govinfo.gov/content/pkg/FR-2025-09-26/pdf/2025-18705.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/09/26/2025-18705/airworthiness-directives-dassault-aviation-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-18705-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-2553

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Dassault Aviation Model FALCON 2000EX airplanes. This proposed AD was prompted by a report of simultaneous failures of the main DC buses powered by Generator 1 (GEN1), and Generator 2 (GEN2) after flap extension during approach. This proposed AD would require revising the existing airplane flight manual (AFM). The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 26, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-18705, comments due Nov 10, 2025 (https://www.federalregister.gov/documents/2025/09/26/2025-18705/airworthiness-directives-dassault-aviation-airplanes)

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