# NTSB Accident ERA16FA248
> **BELL HELICOPTER TEXTRON CANADA 407** · 2016-07-11 · Hickory, KY, USA · FATL
## Event
- **NTSB number:** ERA16FA248
- **Event ID:** 20160711X32921
- **Type:** Accident
- **Date:** 2016-07-11
- **Location:** Hickory, KY, USA
- **Coordinates:** 36.882778, -88.678886
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** BELL HELICOPTER TEXTRON CANADA
- **Model:** 407
- **Registration:** N427TV
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

Company maintenance personnel's inappropriate removal without replacement of the safety wires on the collective lever pin screws during a recent maintenance inspection, which resulted in the screws backing out and led to a loss of collective control in flight.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA16FA248) · AI Analytics · CC0 1.0*