# NTSB Accident ERA12LA293
> **PRENDERGAST JOHN/VANS RV-7A** · 2012-04-16 · Gerrardstown, WV, USA · NONE
## Event
- **NTSB number:** ERA12LA293
- **Event ID:** 20120420X35114
- **Type:** Accident
- **Date:** 2012-04-16
- **Location:** Gerrardstown, WV, USA
- **Coordinates:** 39.351665, -78.099723
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** PRENDERGAST JOHN/VANS
- **Model:** RV-7A
- **Registration:** N5025G
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot/builder's misjudgment of the required spacer width needed after engine housing lap grinding, which resulted in bearing oil hole misalignment and insufficient internal engine lubrication.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA12LA293) · AI Analytics · CC0 1.0*