# NTSB Accident CHI90LA031
> **HELIO H-391B** · 1989-11-20 · PLAINWELL, MI, USA · NONE
## Event
- **NTSB number:** CHI90LA031
- **Event ID:** 20001213X29765
- **Type:** Accident
- **Date:** 1989-11-20
- **Location:** PLAINWELL, MI, USA
- **Coordinates:** 42.439052, -85.639724
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** HELIO
- **Model:** H-391B
- **Registration:** N8750R
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

FAILURE OF THE CROSSWIND LANDING GEAR SYSTEM TO ENGAGE ON THE LEFT MAIN GEAR DUE TO IMPROPER RIGGING ADJUSTMENT BY MAINTENANCE PERSONNEL.  FACTORS RELATED TO THE ACCIDENT WERE:  UNFAVORABLE WIND CONDITIONS (GUSTS AND QUARTERING CROSSWIND) AND SOFT TERRAIN IN THE DITCH.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI90LA031) · AI Analytics · CC0 1.0*