# NTSB Accident WPR09LA381
> **SCHEMPP HIRTH DISCUS CS** · 2009-08-02 · Williams, CA, USA · SERS
## Event
- **NTSB number:** WPR09LA381
- **Event ID:** 20090804X13022
- **Type:** Accident
- **Date:** 2009-08-02
- **Location:** Williams, CA, USA
- **Coordinates:** 39.071109, -122.027221
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** SCHEMPP HIRTH
- **Model:** DISCUS CS
- **Registration:** N7HV
- **FAR Part:** 091
- **Engines:** 0
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to maintain clearance with terrain after intentionally releasing from the tow plane at a low altitude during the initial climb.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR09LA381) · AI Analytics · CC0 1.0*