# Proposed AD FAA-2026-8801: Dassault Aviation Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Dassault Falcon 7X, Mystere-Falcon 900, Falcon 900EX, FALCON 2000 and FALCON 2000EX
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 10, 2026, 91 FR 57521
- Comments due: October 26, 2026
- Docket: FAA-2026-8801 (https://www.regulations.gov/docket/FAA-2026-8801, where comments are filed)
- Project: MCAI-2025-01495-T
- FR document: 2026-18520
- Official PDF: https://openairdocs.org/files/sha256/4f/e9/4fe98c883d0b15c7db458f5ba06c8ff2255c71be8a9478139a9ea5aa6d347347 (from https://www.govinfo.gov/content/pkg/FR-2026-09-10/pdf/2026-18520.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/09/10/2026-18520/airworthiness-directives-dassault-aviation-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-18520-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-8801

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Dassault Aviation Model FALCON 7X, MYSTERE-FALCON 900, FALCON 900EX, FALCON 2000, and FALCON 2000EX airplanes. This proposed AD was prompted by reported occurrences of seats sliding without passenger input. The cabin seat track locking mechanism was found to jam in isolated conditions during taxi, take-off, and landing (TTOL). This proposed AD would require modifying or replacing each affected seat. This proposed AD would also prohibit the installation of affected seats. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 10, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-18520, comments due Oct 26, 2026 (https://www.federalregister.gov/documents/2026/09/10/2026-18520/airworthiness-directives-dassault-aviation-airplanes)

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