# NTSB Accident WPR15FA140
> **QUICKSILVER ENTERPRISES INC MXL II** · 2015-04-03 · Petaluma, CA, USA · FATL
## Event
- **NTSB number:** WPR15FA140
- **Event ID:** 20150403X34847
- **Type:** Accident
- **Date:** 2015-04-03
- **Location:** Petaluma, CA, USA
- **Coordinates:** 38.239723, -122.57833
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** QUICKSILVER ENTERPRISES INC
- **Model:** MXL II
- **Registration:** N476VB
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to maintain control of the airplane while maneuvering, which resulted in an uncontrolled descent and structural failure. Contributing to the accident was the pilot's impairment from his use of diphenhydramine.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR15FA140) · AI Analytics · CC0 1.0*