# NTSB Accident CHI91LA136
> **PIPER PA-28-161** · 1991-04-20 · GRAYSLAKE, IL, USA · NONE
## Event
- **NTSB number:** CHI91LA136
- **Event ID:** 20001212X16764
- **Type:** Accident
- **Date:** 1991-04-20
- **Location:** GRAYSLAKE, IL, USA
- **Coordinates:** 42.33979, -88.030883
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 2
- **Total aboard:** 2
## Aircraft
- **Make:** PIPER
- **Model:** PA-28-161
- **Registration:** N4VT
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE INSTRUCTOR'S INADEQUATE COMPENSATION FOR WIND CONDITIONS. FACTORS WERE THE WIND GUSTS AND THE INSTRUCTOR'S FAILURE TO MAINTAIN AIRSPEED.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI91LA136) · AI Analytics · CC0 1.0*