# NTSB Accident WPR15FA016
> **SONEX SONEX TRIGEAR** · 2014-10-20 · Fawnskin, CA, USA · FATL
## Event
- **NTSB number:** WPR15FA016
- **Event ID:** 20141020X44147
- **Type:** Accident
- **Date:** 2014-10-20
- **Location:** Fawnskin, CA, USA
- **Coordinates:** 34.258335, -116.940834
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** SONEX
- **Model:** SONEX TRIGEAR
- **Registration:** N91922
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to maintain airspeed after takeoff, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall/spin at low altitude. Contributing to the accident was the airplane's reduced climb performance due to a carbon-fouled engine cylinder, the airplane's lack of wheel pants and fairings, and the high density altitude conditions.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR15FA016) · AI Analytics · CC0 1.0*