# NTSB Accident WPR20CA273
> **Schweizer SGS233** · 2020-08-14 · Warner Springs, CA, USA · NONE
## Event
- **NTSB number:** WPR20CA273
- **Event ID:** 20200815X20002
- **Type:** Accident
- **Date:** 2020-08-14
- **Location:** Warner Springs, CA, USA
- **Coordinates:** 33.284442, -116.669723
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Schweizer
- **Model:** SGS233
- **Registration:** N7547
- **FAR Part:** 091
- **Engines:** —
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's inability to maintain altitude due to a loss of thermal lift, which resulted in an off-airport landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR20CA273) · AI Analytics · CC0 1.0*