# Proposed AD 2001-SW-41-AD: Helicopters Manufactured by Bell Helicopter Textron, Inc. for the Armed Forces of the United States, Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P; and Southwest Florida Aviation Model SW204, SW204HP, SW205, and SW205A-1 Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-20-01
- Products: Bell Helicopter Textron
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 10, 2002, 67 FR 17305
- Comments due: June 10, 2002
- Became: [AD 2002-20-01](https://openairdocs.org/ad/2002-20-01)
- Docket: 2001-SW-41-AD
- FR document: 02-8597
- Official PDF: https://openairdocs.org/files/sha256/be/0c/be0c173def6395c3c4a117fb27b974ad25238a3aa04df54376470fa6511afa5f (from https://www.govinfo.gov/content/pkg/FR-2002-04-10/pdf/02-8597.pdf)
- Federal Register: https://www.federalregister.gov/documents/2002/04/10/02-8597/airworthiness-directives-model-hh-1k-th-1f-th-1l-uh-1a-uh-1b-uh-1e-uh-1f-uh-1h-uh-1l-and-uh-1p-and
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8E82E4C3C667A43586256B97005303FA.0001
- Page: https://openairdocs.org/proposed/2001-SW-41-AD

## Summary

This document proposes adopting a new airworthiness directive (AD) for specified restricted category helicopters. The proposed AD would require updating the product identification, extending the application of the AD to other models, continuing the existing retirement time for certain main rotor tension-torsion (TT) straps, and adding the TT strap part numbers to the applicability. This proposal is prompted by the need to expand the applicability to additional restricted category helicopters and to add two part numbers to the applicability. The actions specified by the proposed AD are intended to prevent failure of a TT strap, loss of a main rotor blade, and subsequent loss of control of the helicopter.

## Notices in this docket

- Apr 10, 2002: Notice of proposed rulemaking (NPRM). (first notice), FR document 02-8597, comments due Jun 10, 2002 (https://www.federalregister.gov/documents/2002/04/10/02-8597/airworthiness-directives-model-hh-1k-th-1f-th-1l-uh-1a-uh-1b-uh-1e-uh-1f-uh-1h-uh-1l-and-uh-1p-and)

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