# Proposed AD FAA-2020-0778: Dassault Aviation Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-26-07
- Products: Dassault
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 19, 2020, 85 FR 50970
- Comments due: October 5, 2020
- Became: [AD 2020-26-07](https://openairdocs.org/ad/2020-26-07)
- Docket: FAA-2020-0778 (https://www.regulations.gov/docket/FAA-2020-0778, where comments are filed)
- FR document: 2020-18026
- Official PDF: https://openairdocs.org/files/sha256/cf/92/cf926aef61a0ed8539686dd20cf22c0f3cc7b0803783ab7cfd0f553191fbdeef (from https://www.govinfo.gov/content/pkg/FR-2020-08-19/pdf/2020-18026.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/08/19/2020-18026/airworthiness-directives-dassault-aviation-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F71C3DD12ED93FF1862585C90044D5D7.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0778

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2019-23-05, which applies to all Dassault Aviation Model MYSTERE-FALCON 900 airplanes. AD 2019-23-05 requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. Since the FAA issued AD 2019-23- 05, the agency has determined that new or more restrictive airworthiness limitations are necessary. This proposed AD would require revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations, as specified in a European Union Aviation Safety Agency (EASA) AD, which will be incorporated by reference. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 19, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-18026, comments due Oct 5, 2020 (https://www.federalregister.gov/documents/2020/08/19/2020-18026/airworthiness-directives-dassault-aviation-airplanes)

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