# Proposed AD FAA-2021-0795: Daher Aerospace (Type Certificate Previously Held by SOCATA) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-24-16
- Products: DAHER AEROSPACE
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 17, 2021, 86 FR 51840
- Comments due: November 1, 2021
- Became: [AD 2021-24-16](https://openairdocs.org/ad/2021-24-16)
- Docket: FAA-2021-0795 (https://www.regulations.gov/docket/FAA-2021-0795, where comments are filed)
- Project: 2019-CE-054-AD
- FR document: 2021-19962
- Official PDF: https://openairdocs.org/files/sha256/09/e9/09e91f55c826b8245d30a1f20d86a5b208a33ebcc203ef96230e7f9b625c2eeb (from https://www.govinfo.gov/content/pkg/FR-2021-09-17/pdf/2021-19962.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/09/17/2021-19962/airworthiness-directives-daher-aerospace-type-certificate-previously-held-by-socata-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9C8F723326D5CB39862587530080FF60.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0795

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Daher Aerospace (type certificate previously held by SOCATA) Models TB 20 and TB 21 airplanes. This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as cracks on the main landing gear (MLG) legs. This proposed AD would require repetitively inspecting the MLG and performing all applicable corrective actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Sep 17, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-19962, comments due Nov 1, 2021 (https://www.federalregister.gov/documents/2021/09/17/2021-19962/airworthiness-directives-daher-aerospace-type-certificate-previously-held-by-socata-airplanes)

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