# NTSB Accident CHI04CA261
> **Abbott RAF 2000** · 2004-09-18 · Pontiac, MI, USA · NONE
## Event
- **NTSB number:** CHI04CA261
- **Event ID:** 20041006X01588
- **Type:** Accident
- **Date:** 2004-09-18
- **Location:** Pontiac, MI, USA
- **Coordinates:** 42.665, -83.418609
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Abbott
- **Model:** RAF 2000
- **Registration:** N702BX
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The partial loss of engine power due to the scoring and overheating of the cylinders as a result of the pilot/owner's improper servicing of the modified engine cooling system.  Additional factors included the pilot/owner modifying and servicing the engine cooling system without maintenance instructions available for reference.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI04CA261) · AI Analytics · CC0 1.0*