# NTSB Accident WPR14LA263
> **KNELL ASC SPIRIT** · 2014-06-22 · Lehi, UT, USA · FATL
## Event
- **NTSB number:** WPR14LA263
- **Event ID:** 20140623X11029
- **Type:** Accident
- **Date:** 2014-06-22
- **Location:** Lehi, UT, USA
- **Coordinates:** 40.229999, -112.019996
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** KNELL
- **Model:** ASC SPIRIT
- **Registration:** N127JK
- **FAR Part:** 091
- **Engines:** —
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s exceedance of the glider’s critical angle of attack while maneuvering in a steep turn at low altitude, 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=WPR14LA263) · AI Analytics · CC0 1.0*