# NTSB Accident DEN04LA136
> **Cessna 182** · 2004-09-06 · Gillette, WY, USA · NONE
## Event
- **NTSB number:** DEN04LA136
- **Event ID:** 20040908X01357
- **Type:** Accident
- **Date:** 2004-09-06
- **Location:** Gillette, WY, USA
- **Coordinates:** 44.174999, -105.635002
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Cessna
- **Model:** 182
- **Registration:** N2725G
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

improper engine overhaul performed by the mechanic which resulted in the fractured exhaust valve and subsequent partial loss of engine power. Contributing to the accident was the lack of suitable terrain for a forced landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN04LA136) · AI Analytics · CC0 1.0*