# Proposed AD FAA 2022-0460: Bell Textron Inc., Helicopters and Various Restricted Category Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Bell Textron
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 14, 2022, 87 FR 22146
- Comments due: May 31, 2022
- Docket: FAA 2022-0460
- Project: AD-2021-00824-R
- FR document: 2022-07887
- Official PDF: https://openairdocs.org/files/sha256/e4/2b/e42b435193e8be9ba57cff779871056ee3197f74b38881c834b42642dffad6c0 (from https://www.govinfo.gov/content/pkg/FR-2022-04-14/pdf/2022-07887.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/04/14/2022-07887/airworthiness-directives-bell-textron-inc-helicopters-and-various-restricted-category-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-07887-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA%202022-0460

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Bell Textron Inc., Model 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, and 412EP helicopters and various restricted category helicopters. This proposed AD was prompted by reports of cracks found on the main transmission support case. This proposed AD would require repetitive inspections of the main transmission housing assembly for cracks, pitting, and corrosion and depending on the results, corrective action. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 14, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-07887, comments due May 31, 2022 (https://www.federalregister.gov/documents/2022/04/14/2022-07887/airworthiness-directives-bell-textron-inc-helicopters-and-various-restricted-category-helicopters)

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