# NTSB Accident BFO91LA074
> **CLIFTON DIXON POLLIWAGEN** · 1991-08-06 · CHESTERFIELD, VA, USA · MINR
## Event
- **NTSB number:** BFO91LA074
- **Event ID:** 20001212X17783
- **Type:** Accident
- **Date:** 1991-08-06
- **Location:** CHESTERFIELD, VA, USA
- **Coordinates:** 37.38985, -77.589286
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** CLIFTON DIXON
- **Model:** POLLIWAGEN
- **Registration:** N256PW
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE PARTIAL LOSS OF ENGINE POWER CAUSED BY A MISALIGNED ROCKER ARM SPRING RESULTING IN A REDUCTION OF EXHAUST VALVE OPENING.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=BFO91LA074) · MORVS · CC0 1.0*