# Proposed AD FAA-2005-21230: Bell Helicopter Textron Model 206A and 206B Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-16-04
- Products: Bell Helicopter Textron
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 17, 2005, 70 FR 28220
- Comments due: July 18, 2005
- Became: [AD 2005-16-04](https://openairdocs.org/ad/2005-16-04)
- Docket: FAA-2005-21230 (https://www.regulations.gov/docket/FAA-2005-21230, where comments are filed)
- Project: 2004-SW-51-AD
- FR document: 05-9762
- Official PDF: https://openairdocs.org/files/sha256/c8/36/c8367dc59fd34086443b7d2ddf4604a56d4e5b87b8baba910b68fe4367ec2740 (from https://www.govinfo.gov/content/pkg/FR-2005-05-17/pdf/05-9762.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/05/17/05-9762/airworthiness-directives-bell-helicopter-textron-model-206a-and-206b-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/38114E70E534FA1C86257004004F3BF0.0001
- Page: https://openairdocs.org/proposed/FAA-2005-21230

## Summary

This document proposes adopting a new airworthiness directive (AD) for Bell Helicopter Textron (Bell) Model 206A and 206B helicopters modified by Aeronautical Accessories, Inc. Supplemental Type Certificate (STC) SH1392SO with certain part-numbered high crosstubes. The AD would require inspecting at specified time intervals and replacing any cracked crosstubes. This proposal is prompted by the discovery of a cracked high forward crosstube. The actions specified by the proposed AD are intended to detect a crack in the crosstube which could lead to failure of the crosstube, collapse of the landing gear, and subsequent loss of control of the helicopter.

## Notices in this docket

- May 17, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-9762, comments due Jul 18, 2005 (https://www.federalregister.gov/documents/2005/05/17/05-9762/airworthiness-directives-bell-helicopter-textron-model-206a-and-206b-helicopters)

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