# Proposed AD FAA-2021-0713: Bell Textron Inc., Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-07-03
- Products: Bell Textron
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 27, 2021, 86 FR 48078
- Comments due: October 12, 2021
- Became: [AD 2022-07-03](https://openairdocs.org/ad/2022-07-03)
- Docket: FAA-2021-0713 (https://www.regulations.gov/docket/FAA-2021-0713, where comments are filed)
- Project: AD-2021-00180-R
- FR document: 2021-18383
- Official PDF: https://openairdocs.org/files/sha256/e3/31/e3310bb6f6f20f6cccad3f15a2f9bed7c581bda65c8ee5522b38c627feb20c37 (from https://www.govinfo.gov/content/pkg/FR-2021-08-27/pdf/2021-18383.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/27/2021-18383/airworthiness-directives-bell-textron-inc-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8026328E17D39B508625873E006D6E74.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0713

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Bell Textron Inc., Model 412, 412EP, and 412CF helicopters. This proposed AD was prompted by evaluation results showing flight loads that impact the collective lever fatigue life. This proposed AD would require adding a permanent life penalty for certain collective levers and prohibit installing those collective levers unless the permanent life penalty has been added. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 27, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-18383, comments due Oct 12, 2021 (https://www.federalregister.gov/documents/2021/08/27/2021-18383/airworthiness-directives-bell-textron-inc-helicopters)

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