# NTSB Accident ATL94LA158
> **CESSNA 172XP** · 1994-08-19 · CLARKSBURG, TN, USA · NONE
## Event
- **NTSB number:** ATL94LA158
- **Event ID:** 20001206X01939
- **Type:** Accident
- **Date:** 1994-08-19
- **Location:** CLARKSBURG, TN, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** CESSNA
- **Model:** 172XP
- **Registration:** N9797V
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE FAILURE OF THE ALTERNATOR DRIVE COUPLING, AND DEBRIS FROM THE FAILED COUPLING THAT LODGED IN THE ENGINE OIL PUMP, RESULTING IN  A SHEARED OIL PUMP DRIVE SHAFT. THE ENGINE SUBSEQUENTLY FAILED BECAUSE OF OIL STARVATION.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ATL94LA158) · AI Analytics · CC0 1.0*