# NTSB Accident CEN18CA291
> **Quad City CHALLENGER** · 2018-07-23 · Oshkosh, WI, USA · NONE
## Event
- **NTSB number:** CEN18CA291
- **Event ID:** 20180723X24509
- **Type:** Accident
- **Date:** 2018-07-23
- **Location:** Oshkosh, WI, USA
- **Coordinates:** 43.966945, -88.560836
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Quad City
- **Model:** CHALLENGER
- **Registration:** N1666R
- **FAR Part:** 091
- **Engines:** —
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s failure to maintain adequate airspeed during the base to final turn and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN18CA291) · AI Analytics · CC0 1.0*