# NTSB Accident SEA91FA046
> **CESSNA C-172** · 1991-02-03 · COLSTRIP, MT, USA · FATL
## Event
- **NTSB number:** SEA91FA046
- **Event ID:** 20001212X16508
- **Type:** Accident
- **Date:** 1991-02-03
- **Location:** COLSTRIP, MT, USA
- **Coordinates:** 45.97977, -106.670768
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** CESSNA
- **Model:** C-172
- **Registration:** N8531B
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

THE PILOT'S FAILURE TO MAINTAIN ADEQUATE TERRAIN CLEARANCE.  FACTORS RELATING TO THE ACCIDENT WERE THE PILOT'S LACK OF TOTAL NIGHT FLIGHT EXPERIENCE, HIS LACK OF RECENT NIGHT FLIGHT EXPERIENCE, THE DARK NIGHT LIGHT CONDITIONS, AND THE MOUNTAINOUS/HILLY TERRAIN IN THE AREA.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA91FA046) · AI Analytics · CC0 1.0*