# Proposed AD FAA-2012-0530: Bell Helicopter Textron Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-22-11
- Products: Bell Helicopter Textron
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 22, 2012, 77 FR 30232
- Comments due: July 23, 2012
- Became: [AD 2012-22-11](https://openairdocs.org/ad/2012-22-11)
- Docket: FAA-2012-0530 (https://www.regulations.gov/docket/FAA-2012-0530, where comments are filed)
- Project: 2011-SW-075-AD
- FR document: 2012-12350
- Official PDF: https://openairdocs.org/files/sha256/94/7b/947b2431d18cdb5aa8e04a6dbb0763f0abe4edf03b87c751891f81a30950f3dc (from https://www.govinfo.gov/content/pkg/FR-2012-05-22/pdf/2012-12350.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/05/22/2012-12350/airworthiness-directives-bell-helicopter-textron-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/21F50635D448D47086257A06004988CD.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0530

## Summary

We propose to adopt a new airworthiness directive (AD) for Bell Helicopter Textron (BHT) Model 412, 412EP, and 412CF helicopters. This proposed AD is prompted by a reported failure of a collective lever. These proposed actions are intended to detect a crack in the collective lever, which could lead to failure of the collective lever and subsequent loss of control of the helicopter.

## Notices in this docket

- May 22, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-12350, comments due Jul 23, 2012 (https://www.federalregister.gov/documents/2012/05/22/2012-12350/airworthiness-directives-bell-helicopter-textron-helicopters)

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