# NTSB Incident CHI91IA223
> **BEECH B200** · 1991-07-22 · GREENBAY, WI, USA · NONE
## Event
- **NTSB number:** CHI91IA223
- **Event ID:** 20001212X17488
- **Type:** Incident
- **Date:** 1991-07-22
- **Location:** GREENBAY, WI, USA
- **Coordinates:** 44.589401, -88.120361
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 8
- **Total aboard:** 8
## Aircraft
- **Make:** BEECH
- **Model:** B200
- **Registration:** N770M
- **FAR Part:** 091
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

INADEQUATE AIRFRAME DESIGN, WHICH RESULTED IN THE IN-FLIGHT SEPARATION OF THE LEFT ENGINE'S OUTBOARD AFT UPPER COWL DOOR.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI91IA223) · AI Analytics · CC0 1.0*