# NTSB Accident WPR23FA287
> **BEECH P35** · 2023-07-30 · Upland, CA, USA · FATL
## Event
- **NTSB number:** WPR23FA287
- **Event ID:** 20230730192739
- **Type:** Accident
- **Date:** 2023-07-30
- **Location:** Upland, CA, USA
- **Coordinates:** 34.111611, -117.68738
## Injuries
- **Highest injury:** FATL
- **Fatal:** 3
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** BEECH
- **Model:** P35
- **Registration:** N8572M
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAWN
- **Weather:** VMC
## Probable cause

The pilot’s exceedance of the airplane’s critical angle of attack, for reasons that could not be determined, which resulted in a subsequent aerodynamic stall and impact with a building.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR23FA287) · AI Analytics · CC0 1.0*