# NTSB Accident SEA93FA088
> **MITSUBISHI MU-2B-35** · 1993-04-06 · Casper, WY, USA · FATL
## Event
- **NTSB number:** SEA93FA088
- **Event ID:** 20001211X12240
- **Type:** Accident
- **Date:** 1993-04-06
- **Location:** Casper, WY, USA
- **Coordinates:** 42.896948, -106.46479
## Injuries
- **Highest injury:** FATL
- **Fatal:** 4
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** MITSUBISHI
- **Model:** MU-2B-35
- **Registration:** N96JP
- **FAR Part:** 135
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** NDRK
- **Weather:** IMC
## Probable cause

FAILURE OF THE PILOT TO MAINTAIN PROPER ALTITUDE DURING THE NIGHT IFR APPROACH IN INSTRUMENT METEOROLOGICAL CONDITIONS (IMC).

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=SEA93FA088) · AI Analytics · CC0 1.0*