# NTSB Accident DEN08LA163
> **BEECH C23** · 2008-09-28 · Duncan, OK, USA · MINR
## Event
- **NTSB number:** DEN08LA163
- **Event ID:** 20081006X61108
- **Type:** Accident
- **Date:** 2008-09-28
- **Location:** Duncan, OK, USA
- **Coordinates:** 34.470832, -97.959724
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** BEECH
- **Model:** C23
- **Registration:** N6714E
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

A total loss of engine power due to the fatigue failure of the engine crankshaft.  Contributing to the accident were the improper maintenance to the engine crankshaft, improper reassembly of the engine, and failure to follow the engine manufacturer's overhaul manual.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN08LA163) · AI Analytics · CC0 1.0*