# NTSB Accident CHI90LA115
> **Beech F33A** · 1990-04-20 · MILWAUKEE, WI, USA · MINR
## Event
- **NTSB number:** CHI90LA115
- **Event ID:** 20001212X22885
- **Type:** Accident
- **Date:** 1990-04-20
- **Location:** MILWAUKEE, WI, USA
- **Coordinates:** 42.980438, -87.89933
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 3
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** Beech
- **Model:** F33A
- **Registration:** N179DD
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE UTILIZATION OF IMPROPER PROCEDURES ON THE PART OF THE PILOT IN COMMAND BY ATTEMPTING TO EXECUTE A COUPLED APPROACH OUTSIDE THE PARAMETERS OF THE AUTOPILOT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI90LA115) · AI Analytics · CC0 1.0*