# NTSB Accident WPR10LA462
> **COSMOS PHASE II** · 2010-09-20 · El Mirage, CA, USA · FATL
## Event
- **NTSB number:** WPR10LA462
- **Event ID:** 20100920X21917
- **Type:** Accident
- **Date:** 2010-09-20
- **Location:** El Mirage, CA, USA
- **Coordinates:** 34.630279, -117.619445
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** COSMOS
- **Model:** PHASE II
- **Registration:** N56078
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's improper preflight and starting procedures, which resulted in an inadvertent takeoff with the gust lock still installed.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR10LA462) · AI Analytics · CC0 1.0*