# NTSB Accident CHI89MA057
> **NIHON YS-11A-600** · 1989-03-15 · WEST LAFAYETTE, IN, USA · FATL
## Event
- **NTSB number:** CHI89MA057
- **Event ID:** 20001213X27867
- **Type:** Accident
- **Date:** 1989-03-15
- **Location:** WEST LAFAYETTE, IN, USA
- **Coordinates:** 40.440299, -86.910743
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** NIHON
- **Model:** YS-11A-600
- **Registration:** N128MP
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** DEST
## Conditions
- **Light:** DAWN
- **Weather:** VMC
## Probable cause

A LOSS OF CONTROL DUE TO THE IMPROPER INFLIGHT DECISIONS BY THE CREW AND THE UNDETECTED ACCUMULATION OF ICE ON THE LEADING EDGE OF THE HORIZONTAL STABILIZER, DURING FLIGHT IN A FORWARD CENTER OF GRAVITY CONDITION AND EXACERBATED BY THE EXTENSION OF FULL LANDING FLAPS.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI89MA057) · AI Analytics · CC0 1.0*