# Proposed AD FAA-2020-0561: Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron Inc.) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-19-08
- Products: Bell Textron
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 9, 2020, 85 FR 35227
- Comments due: July 24, 2020
- Became: [AD 2020-19-08](https://openairdocs.org/ad/2020-19-08)
- Docket: FAA-2020-0561 (https://www.regulations.gov/docket/FAA-2020-0561, where comments are filed)
- FR document: 2020-12338
- Official PDF: https://openairdocs.org/files/sha256/51/35/513533f85b8e151539cb6c527185e83a99833aecfa8ffa632973f6b0b4bc8901 (from https://www.govinfo.gov/content/pkg/FR-2020-06-09/pdf/2020-12338.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/06/09/2020-12338/airworthiness-directives-bell-textron-inc-type-certificate-previously-held-by-bell-helicopter
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7C8E4760BD40133486258582003FF6E7.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0561

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Bell Textron Inc. (Type Certificate previously held by Bell Helicopter Textron Inc.) (Bell), Model 204B, 205A-1, and 212 helicopters. This proposed AD was prompted by reports of corrosion on main rotor hub tension-torsion strap (TT strap) assemblies. This proposed AD would require reducing the life limit of a certain part- numbered TT strap assembly and prohibit installing this TT strap assembly on any helicopter. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jun 9, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-12338, comments due Jul 24, 2020 (https://www.federalregister.gov/documents/2020/06/09/2020-12338/airworthiness-directives-bell-textron-inc-type-certificate-previously-held-by-bell-helicopter)

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