# Proposed AD FAA-2020-0977: Dassault Aviation Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-03-12
- Products: Dassault
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 2, 2020, 85 FR 69269
- Comments due: December 17, 2020
- Became: [AD 2021-03-12](https://openairdocs.org/ad/2021-03-12)
- Docket: FAA-2020-0977 (https://www.regulations.gov/docket/FAA-2020-0977, where comments are filed)
- Project: MCAI-2020-01106-T
- FR document: 2020-24042
- Official PDF: https://openairdocs.org/files/sha256/8d/50/8d5052d5eb35aa077dfcab99f9f22da94f3b150424c41fe0ec24d314d32f5b71 (from https://www.govinfo.gov/content/pkg/FR-2020-11-02/pdf/2020-24042.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/11/02/2020-24042/airworthiness-directives-dassault-aviation-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/78951B485D7DC9EF8625861400535EA8.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0977

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2019-03-27, which applies to all Dassault Aviation Model Falcon 10 airplanes. AD 2019-03-27 requires repetitive detailed inspections of certain wing anti-ice outboard flexible hoses, and replacement of certain wing anti-ice outboard flexible hoses. Since the FAA issued AD 2019-03-27, an improved wing anti-ice flexible hose has been developed. This proposed AD would continue to require the actions in AD 2019-03- 27, and would add a new life limit for the improved wing anti-ice flexible hose, 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

- Nov 2, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-24042, comments due Dec 17, 2020 (https://www.federalregister.gov/documents/2020/11/02/2020-24042/airworthiness-directives-dassault-aviation-airplanes)

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