# NTSB Accident CHI91FA259
> **PIPER PA-24-250** · 1991-08-12 · GUIDE ROCK, NE, USA · FATL
## Event
- **NTSB number:** CHI91FA259
- **Event ID:** 20001212X17802
- **Type:** Accident
- **Date:** 1991-08-12
- **Location:** GUIDE ROCK, NE, USA
- **Coordinates:** 40.070598, -98.320777
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** PIPER
- **Model:** PA-24-250
- **Registration:** N5145P
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

SPATIAL DISORIENTATION, AND EXCEEDING THE DESIGN LIMITS OF THE AIRCRAFT. FACTORS RELATED TO THE ACCIDENT ARE INADEQUATE PREFLIGHT PLANNING, VFR FLIGHT INTO IMC, FLIGHT WEATHER AVOIDANCE ASSISTANCE NOT FOLLOWED, EXCESSIVE ALTITUDE, PHYSICAL IMPAIRMENT (ANOXIA/HYPOXIA), AND LACK OF TOTAL INSTRUMENT TIME.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI91FA259) · AI Analytics · CC0 1.0*