# NTSB Accident SEA91LA260
> **AERO COMMANDER S-2R** · 1991-04-15 · GRANGEVILLE, ID, USA · FATL
## Event
- **NTSB number:** SEA91LA260
- **Event ID:** 20001212X16895
- **Type:** Accident
- **Date:** 1991-04-15
- **Location:** GRANGEVILLE, ID, USA
- **Coordinates:** 45.899524, -116.12976
## Injuries
- **Highest injury:** FATL
- **Fatal:** 1
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** AERO COMMANDER
- **Model:** S-2R
- **Registration:** N5539X
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** IMC
## Probable cause

THE IMPROPER DECISION BY THE PILOT TO CONTINUE VFR FLIGHT IN IMC WEATHER CONDITIONS IN MOUNTAINOUS TERRAIN, RESULTING IN PILOT DISORIENTATION AND INADVERTENT FLIGHT INTO A BOX CANYON.  FACTORS RELATING TO THE ACCIDENT WERE THE RAIN SHOWERS AND LOW CEILING WEATHER CONDITIONS, AND THE BOX CANYON IN MOUNTAINOUS TERRAIN.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA91LA260) · AI Analytics · CC0 1.0*