# NTSB Accident FTW91FA155
> **BELL 412** · 1991-08-26 · GARDEN BANKS · FATL
## Event
- **NTSB number:** FTW91FA155
- **Event ID:** 20001212X17861
- **Type:** Accident
- **Date:** 1991-08-26
- **Location:** GARDEN BANKS
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 4
- **Minor:** 1
- **Uninjured:** 7
- **Total aboard:** 13
## Aircraft
- **Make:** BELL
- **Model:** 412
- **Registration:** N3909F
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

OVERHEATING AND SUBSEQUENT FAILURE OF THE NUMBER ONE TAIL ROTOR HANGER BEARING FOR AN UNDETERINED REASON, AND FAILURE OF THE TAIL ROTOR DRIVE SHAFT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=FTW91FA155) · AI Analytics · CC0 1.0*