# NTSB Accident CHI90LA017
> **DE HAVILLAND DH82A** · 1989-10-22 · MASCOUTAH, IL, USA · NONE
## Event
- **NTSB number:** CHI90LA017
- **Event ID:** 20001213X29570
- **Type:** Accident
- **Date:** 1989-10-22
- **Location:** MASCOUTAH, IL, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** DE HAVILLAND
- **Model:** DH82A
- **Registration:** N100MH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

AN UNDETERMINED POWERPLANT PROBLEM, WHICH RESULTED IN A SEVERE VIBRATION.  THE SOFT/UNEVEN TERRAIN WAS CONSIDERED TO BE A CONTRIBUTING FACTOR.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI90LA017) · AI Analytics · CC0 1.0*