# Airworthiness Directives; Various Restricted Category Helicopters
> **Rule** · Final rule. · Published 2014-02-19 · Effective 2014-03-26 · 79 FR 9385
## Document
- **Document number:** 2014-02962
- **Category:** airworthiness
- **Manufacturer:** Various Restricted Category
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 79 FR 9385
- **Publication date:** 2014-02-19
- **Effective date:** 2014-03-26
- **FAA docket:** Docket No. FAA-2013-0736
## Abstract

We are adopting a new airworthiness directive (AD) for various restricted category helicopters, originally manufactured by Bell Helicopter Textron, Inc. (Bell), model numbers HH-1K, TH-1F, TH-1L, UH- 1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P. This AD requires inspecting the tail rotor (T/R) cable assembly for an incorrectly machined body. This AD is prompted by a report from Bell that a defective body on the cable prevents the barrel assembly from fully engaging in the body cavity. These actions are intended to prevent disengagement of the cable from the barrel, failure of the T/R pitch control, and subsequent loss of control of the helicopter.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/02/19/2014-02962/airworthiness-directives-various-restricted-category-helicopters)
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