# NTSB Accident CHI89FA154
> **RYAN PT-22** · 1989-07-31 · OSHKOSH, WI, USA · MINR
## Event
- **NTSB number:** CHI89FA154
- **Event ID:** 20001213X28761
- **Type:** Accident
- **Date:** 1989-07-31
- **Location:** OSHKOSH, WI, USA
- **Coordinates:** 43.539539, -89.460235
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** RYAN
- **Model:** PT-22
- **Registration:** N54403
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE EXPERIMENTAL AIRCRAFT ASSOCIATION'S (EAA'S) INADEQUATE PROCEDURE FOR PROVIDING CONTROL AND SEPARATION OF AIRCRAFT, ITS INADEQUATE SURVEILLANCE OF THE OPERATION, AND INADEQUATE COORDINATION BY GROUND PERSONNEL. RELATED FACTORS WERE:  THE GROUND PERSONNEL'S LACK OF EXPERIENCE IN THE TYPE OF OPERATION, AND THE PRESENCE OF OTHER AIRCRAFT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI89FA154) · AI Analytics · CC0 1.0*