# Incident 19910722035799I: Beech B200, Green Bay, WI, July 22, 1991

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 22, 1991, 09:00 local time
- Place: Green Bay, WI
- Airport: Austin Straubel Field
- Damage: Minor damage
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 44.5894° N, 88.1204° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=44.5894&lon=-88.1204&mi=10
- Aircraft: N770M (not matched to a registry record)
- Reported make and model: BEECH B200
- Reported engine: PWA PT6A42
- People aboard: 8
- Fatal injuries: 0
- Pilot flight hours: 6,800 total, 1,800 in this make and model, 60 in the last 90 days
- NTSB investigation: [NTSB CHI91IA223](https://openairdocs.org/ntsb/CHI91IA223) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910722035799I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

AFT UPPER COWL DOOR SEPARATED IN FLIGHT. SHUT ENGINE DOWN AND LANDED AT DESTINATION SAFELY.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI91IA223](https://openairdocs.org/ntsb/CHI91IA223), Jul 22, 1991: Beech B200 (N770M), Greenbay, WI, incident, minor damage. Probable cause: INADEQUATE AIRFRAME DESIGN, WHICH RESULTED IN THE IN-FLIGHT SEPARATION OF THE LEFT ENGINE'S OUTBOARD AFT UPPER COWL DOOR.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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