# NTSB Accident CHI91LA257
> **BELL 47G** · 1991-08-11 · LAKE OZARK, MO, USA · NONE
## Event
- **NTSB number:** CHI91LA257
- **Event ID:** 20001212X17820
- **Type:** Accident
- **Date:** 1991-08-11
- **Location:** LAKE OZARK, MO, USA
- **Coordinates:** 38.179832, -92.619132
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** BELL
- **Model:** 47G
- **Registration:** N61SD
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FAILURE OF THE ROTORCRAFT'S TAIL BOOM IN FLIGHT.  FACTORS RELATED TO THE ACCIDENT WERE REDUCED AIRCRAFT CONTROL AVAILABLE TO THE PILOT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI91LA257) · AI Analytics · CC0 1.0*