# NTSB Accident BFO91LA054
> **GRUMMAN AA-1C** · 1991-06-13 · UNION HALL, VA, USA · NONE
## Event
- **NTSB number:** BFO91LA054
- **Event ID:** 20001212X17179
- **Type:** Accident
- **Date:** 1991-06-13
- **Location:** UNION HALL, VA, USA
- **Coordinates:** 36.999519, -79.679794
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** GRUMMAN
- **Model:** AA-1C
- **Registration:** N9755U
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE LOSS OF ENGINE POWER BROUGHT ON BY A FAILURE OF THE NUMBER THREE CLYINDER EXHAUST VALVE. CONTRIBUTING TO THE ACCIDENT WAS A HIDDEN OBJECT ON THE EMERGENCY LANDING FIELD.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=BFO91LA054) · MORVS · CC0 1.0*