# NTSB Accident CHI91DCD01
> **HEAL SONERAI-I** · 1991-06-23 · DAVENPORT, IA, USA · FATL
## Event
- **NTSB number:** CHI91DCD01
- **Event ID:** 20001212X17186
- **Type:** Accident
- **Date:** 1991-06-23
- **Location:** DAVENPORT, IA, USA
- **Coordinates:** 41.520401, -90.569
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** HEAL
- **Model:** SONERAI-I
- **Registration:** N4227N
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FAILURE OF THE WING SPAR STRAPS, AS THE AIRCRAFT WAS BEING MANEUVERED AROUND A PYLON IN AN AIR RACE.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI91DCD01) · AI Analytics · CC0 1.0*