# Proposed AD FAA-2023-1719: Dassault Aviation Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2010-26-05 R1
- Products: Dassault
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 29, 2023, 88 FR 59471
- Comments due: October 13, 2023
- Became: [AD 2010-26-05 R1](https://openairdocs.org/ad/2010-26-05-R1)
- Docket: FAA-2023-1719 (https://www.regulations.gov/docket/FAA-2023-1719, where comments are filed)
- Project: 2008-NM-202-AD
- FR document: 2023-18519
- Official PDF: https://openairdocs.org/files/sha256/5f/01/5f0168461e050adbd84b18d601822ef3888b27d865433451b976a2b3cb557bd5 (from https://www.govinfo.gov/content/pkg/FR-2023-08-29/pdf/2023-18519.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/08/29/2023-18519/airworthiness-directives-dassault-aviation-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-18519-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-1719

## Summary

The FAA proposes to remove Airworthiness Directive (AD) 2010- 26-05, which applies to certain Dassault Aviation Model Falcon 10 airplanes; Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes; Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5, and 20-F5 airplanes; and all Model MYSTERE-FALCON 200 airplanes; Model FALCON 2000 and FALCON 2000EX airplanes; Model MYSTERE-FALCON 50 and MYSTERE- FALCON 900 airplanes; and Model FALCON 900EX airplanes. AD 2010-26-05 requires repetitive inspections for overpressure tightness on the pressurization control regulating valves and, if necessary, replacing the affected valve with a serviceable unit. AD 2010-26-05 is no longer necessary because the FAA has since issued ADs 2021-04-20, 2020-02-13, 2020-03-24, 2020-03-19, 2020-01-13, 2023-05-15, 2023-04-10, 2023-02-13, 2023-04-18, and 2023-04-13 to address the unsafe condition. Accordingly, the FAA proposes to remove AD 2010-26-05.

## Notices in this docket

- Aug 29, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-18519, comments due Oct 13, 2023 (https://www.federalregister.gov/documents/2023/08/29/2023-18519/airworthiness-directives-dassault-aviation-airplanes)

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