Beechcraft B200 N770M
22 July 1991 · Greenbay, Wisconsin, United States · No injuries
Summary
On 22 July 1991 at about 14:05 local time, a Beechcraft B200 registered N770M was involved in an incident near Greenbay, Wisconsin, United States. 8 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 14:05
- Classification
- Incident
- Location
- Greenbay, Wisconsin, United States
- Coordinates
- 44.5894, -88.1204
- Aircraft
- Beechcraft B200
- Registration
- N770M
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Business
- Phase of flight
- Not recorded
- Route
- Milwaukee → Greenbay
- Aircraft damage
- Minor
- Weather
- VMC
- Light
- Day
- NTSB number
- CHI91IA223
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 8 | 0 | 0 | 0 | 8 |
Probable cause
INADEQUATE AIRFRAME DESIGN, WHICH RESULTED IN THE IN-FLIGHT SEPARATION OF THE LEFT ENGINE'S OUTBOARD AFT UPPER COWL DOOR.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE TWIN-ENGINE TURBO PROP AIRPLANE WAS CRUISING AT 8000' MSL, WHEN THE LEFT ENGINE'S OUTBOARD AFT UPPER ACCESSORY CASE COWL DOOR SEPARTED FROM ITS MOUNT. THE COWL DOOR STRUCK THE TOP SURFACE OF THE LEFT WING (OUTBOARD OF THE ENGINE NACELLE) & PENETRATED THE WING'S FUEL CELL. THIS RESULTED IN FUEL SIPHONING & PROMPTED THE PILOT TO PERFORM A PRECAUTIONARY ENGINE SHUTDOWN. THE AIRPLANE WAS LANDED WITHOUT FURTHER INCIDENT. AIRWORTHINESS DIRECTIVE (AD) 91-18-11 (EFFECTIVE 9/3/91) REQUIRED STRUCTURAL MODIFICATION OF THE AFT UPPER COWL ASSEMBLY DOORS TO PREVENT INFLIGHT SEPARATION.
Quoted verbatim from the NTSB record.
Other Beechcraft B200 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 18 Jul 1987 | Beechcraft B200 | Crystal Bay, Nevada, United States | Richard P. Lieberman | Fatal | 4 |
| 23 Jun 1987 | Beechcraft B200 | Jasper, Alabama, United States | Barry D. Tidwell | No injuries | - |
| 2 Feb 1997 | Beechcraft B200 | Marshall, Minnesota, United States | - | No injuries | - |
| 28 Oct 1997 | Beechcraft B200 | Norfolk, Virginia, United States | - | Serious injuries | - |
| 20 Oct 1998 | Beechcraft B200 | Rio Rancho, New Mexico, United States | - | No injuries | - |
| 22 Jul 1983 | Beechcraft B200 | Winston Salem, North Carolina, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 26 Apr 1991 | Taylorcraft BC12-D | Evansville, Wisconsin, United States | Sugar River Flying Club | No injuries | - |
| 11 May 1991 | Cessna 172 | Neosho, Wisconsin, United States | Eugene Uhing | No injuries | - |
| 12 May 1991 | Bellanca 7GCBC | Hillsbord, Wisconsin, United States | Recreational Service Insurance | Minor injuries | - |
| 14 May 1991 | Piper PA-34-220T | Eau Claire, Wisconsin, United States | Rojo | No injuries | - |
| 8 Oct 1991 | Cessna 150M | Marion, Wisconsin, United States | James H. Jahnke | No injuries | - |
| 20 Oct 1991 | North American NAVION D | Lake Geneva, Wisconsin, United States | Rempert, Roger L. | No injuries | - |