# NTSB Accident WPR09LA432
> **CESSNA P206B** · 2009-09-08 · Truckee, CA, USA · SERS
## Event
- **NTSB number:** WPR09LA432
- **Event ID:** 20090908X21520
- **Type:** Accident
- **Date:** 2009-09-08
- **Location:** Truckee, CA, USA
- **Coordinates:** 39.319999, -120.139442
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 4
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** CESSNA
- **Model:** P206B
- **Registration:** N206ST
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s failure to maintain adequate airspeed for flight, which resulted in an aerodynamic stall and subsequent impact with the ground. Contributing to the accident was the intermittent failure of the stall warning system due to a contaminated switch.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR09LA432) · AI Analytics · CC0 1.0*