# NTSB Accident WPR09FA391
> **NAVION NAVION A** · 2009-08-07 · Adrian, OR, USA · FATL
## Event
- **NTSB number:** WPR09FA391
- **Event ID:** 20090811X33954
- **Type:** Accident
- **Date:** 2009-08-07
- **Location:** Adrian, OR, USA
- **Coordinates:** 43.439167, -117.085281
## Injuries
- **Highest injury:** FATL
- **Fatal:** 3
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** NAVION
- **Model:** NAVION A
- **Registration:** N4898K
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** IMC
## Probable cause

The pilot’s failure to maintain aircraft control while in cruise flight due to spatial disorientation, which resulted in an exceedence of the design stress limits of the aircraft and led to an in-flight structural failure.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR09FA391) · AI Analytics · CC0 1.0*