# Proposed AD FAA-2020-1078: Textron Aviation Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2023-02-17
- Products: Textron
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 11, 2021, 86 FR 25812
- Comments due: June 25, 2021
- Became: [AD 2023-02-17](https://openairdocs.org/ad/2023-02-17)
- Docket: FAA-2020-1078 (https://www.regulations.gov/docket/FAA-2020-1078, where comments are filed)
- Project: AD-2020-00716-A
- FR document: 2021-09871
- Official PDF: https://openairdocs.org/files/sha256/30/72/307265e508d13b89e29b7fb3311d8875cd76eb2791817cf9e8f1fa14755c3ce3 (from https://www.govinfo.gov/content/pkg/FR-2021-05-11/pdf/2021-09871.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/05/11/2021-09871/airworthiness-directives-textron-aviation-inc-type-certificate-previously-held-by-cessna-aircraft
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8A2BD76E8D5C31B1862586D20074C22A.0001
- Page: https://openairdocs.org/proposed/FAA-2020-1078

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Textron Aviation Inc. (Textron) (Type Certificate previously held by Cessna Aircraft Company) Models 210N, 210R, P210N, P210R, T210N, T210R, 177, 177A, 177B, 177RG, and F177RG airplanes. This proposed AD was prompted by the in-flight break-up of a Model T210M airplane in Australia, due to fatigue cracking that initiated at a corrosion pit, and subsequent corrosion reports on other Model 210- series and Model 177-series airplanes. This proposed AD would require visual and eddy current inspections of the carry-thru spar lower cap, corrective action if necessary, application of a protective coating and corrosion inhibiting compound (CIC), and reporting the inspection results to the FAA. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- May 11, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-09871, comments due Jun 25, 2021 (https://www.federalregister.gov/documents/2021/05/11/2021-09871/airworthiness-directives-textron-aviation-inc-type-certificate-previously-held-by-cessna-aircraft)

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