# Proposed AD 2000-SW-16-AD: Bell Helicopter Textron, Inc. Model 204B Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-02-11
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 2, 2000, 65 FR 58681
- Comments due: December 1, 2000
- Became: [AD 2001-02-11](https://openairdocs.org/ad/2001-02-11)
- Docket: 2000-SW-16-AD
- FR document: 00-25154
- Official PDF: https://openairdocs.org/files/sha256/bf/7c/bf7cae8f271e8e26b583f94aa6e49c8777e056e9edccdb1458902835dc0782c4 (from https://www.govinfo.gov/content/pkg/FR-2000-10-02/pdf/00-25154.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/10/02/00-25154/airworthiness-directives-bell-helicopter-textron-inc-model-204b-helicopters
- Page: https://openairdocs.org/proposed/2000-SW-16-AD

## Summary

This document proposes adopting a new airworthiness directive (AD) for Bell Helicopter Textron, Inc. (BHTI) Model 204B helicopters. The AD would require replacing any main rotor mast assembly (mast), part number (P/N) 204-011-450-001, within 25 hours time-in-service (TIS). This proposal is prompted by the crash of a restricted category Model UH-1B helicopter due to failure of a mast, P/N 204-011-450-001. The same mast P/N is used on the Model 204B helicopters. The actions specified by the proposed AD are intended to prevent failure of the mast and subsequent loss of control of the helicopter.

## Notices in this docket

- Oct 2, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-25154, comments due Dec 1, 2000 (https://www.federalregister.gov/documents/2000/10/02/00-25154/airworthiness-directives-bell-helicopter-textron-inc-model-204b-helicopters)

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