# NTSB Accident CHI07CA124
> **Wilkinson Daniel V Rotorway Exec 90** · 2007-04-28 · Kalamazoo, MI, USA · NONE
## Event
- **NTSB number:** CHI07CA124
- **Event ID:** 20070622X00779
- **Type:** Accident
- **Date:** 2007-04-28
- **Location:** Kalamazoo, MI, USA
- **Coordinates:** 42.288887, -85.75
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** Wilkinson Daniel V
- **Model:** Rotorway Exec 90
- **Registration:** N52988
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of the sprag clutch which resulted in the disengagement of the drive unit and the pilot's misjudged landing during the autorotation. A factor was the low altitude at which the failure occurred.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI07CA124) · AI Analytics · CC0 1.0*