# NTSB Accident WPR21LA325
> **STOUT GARRY V EUROPA - TRIGEAR** · 2021-08-16 · Hanksville, UT, USA · NONE
## Event
- **NTSB number:** WPR21LA325
- **Event ID:** 20210817103718
- **Type:** Accident
- **Date:** 2021-08-16
- **Location:** Hanksville, UT, USA
- **Coordinates:** 38.0586, -110.96113
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** STOUT GARRY V
- **Model:** EUROPA - TRIGEAR
- **Registration:** N133AC
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s installation of a non-original equipment manufactured radiator cap, which resulted in the loss of coolant and the engine’s exceedance of the maximum admissible cylinder head temperature. Contributing to the accident was the lack of suitable terrain for the forced landing.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR21LA325) · AI Analytics · CC0 1.0*