# NTSB Accident WPR25LA095
> **QUICKSILVER AERONAUTICS LLC L-S2S** · 2025-02-17 · Geyserville, CA, USA · NONE
## Event
- **NTSB number:** WPR25LA095
- **Event ID:** 20250218199721
- **Type:** Accident
- **Date:** 2025-02-17
- **Location:** Geyserville, CA, USA
- **Coordinates:** 38.71781, -122.88706
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** QUICKSILVER AERONAUTICS LLC
- **Model:** L-S2S
- **Registration:** N14QK
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s failure to secure the coolant cap during the preflight inspection, which resulted in a total loss of engine power due to overheating and a subsequent forced landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR25LA095) · AI Analytics · CC0 1.0*