Narrative:
North Central Flight 290, a Convair CV-580 departed Green Bay (GRB) at 10:30 for a flight to Oshkosh (OSH), Milwaukee (MKE) and Chicago. The aircraft climbed to 2,500 feet and proceeded on an approximate course to Oshkosh. At 10:35 the flight made its initial contact with Oshkosh tower stating, "...we're about, seven northeast, two thousand five hundred, VFR." The crew were cleared for a runway 27 landing at 10:36. At that same time, an Air Wisconsin Twin Otter turboprop plane was on its way from Sheboygan (SBM) to Appleton (ATW) at the same altitude. An in-flight collision occurred at 10:36:47 over Lake Winnebago, at an altitude of approximately 2,500 feet. Explosion and fire followed the and both aircraft fell into Lake Winnebago. The accident occurred in hazy sunlight below a scattered cloud layer.
PROBABLE CAUSE: "The failure of both flight crews to detect visually the other aircraft in sufficient time to initiate evasive action. the Board is unable to determine why each crew failed to see and avoid the other aircraft; however, the Board believes that the ability of both crews to detect the other aircraft in time to avoid a collision was reduced because of the atmospheric conditions and human visual limitations."
Loss of control
accident date: 29-06-1972
type: Convair CV-580
registration: N90858
| Status: | Accident investigation report completed and information captured |
| Date: | Thursday 29 June 1972 |
| Time: | 10:37 |
| Type: |  Convair CV-580 |
| Operator: | North Central Airlines |
| Registration: | N90858 |
| MSN: | 83 |
| First flight: | 1953 |
| Total airframe hrs: | 45905 |
| Engines: | 2 Allison 501-D13 |
| Crew: | Fatalities: 3 / Occupants: 3 |
| Passengers: | Fatalities: 2 / Occupants: 2 |
| Total: | Fatalities: 5 / Occupants: 5 |
| Collision casualties: | Fatalities: 8 |
| Aircraft damage: | Destroyed |
| Aircraft fate: | Written off (damaged beyond repair) |
| Location: | ca. 8 km S of Appleton, WI ( United States of America)
|
| Phase: | Approach (APR) |
| Nature: | Domestic Scheduled Passenger |
| Departure airport: | Green Bay-Austin-Straubel Field, WI (GRB/KGRB), United States of America |
| Oshkosh-Wittman Field, WI (OSH/KOSH), United States of America | |
| Flightnumber: | 290 |
North Central Flight 290, a Convair CV-580 departed Green Bay (GRB) at 10:30 for a flight to Oshkosh (OSH), Milwaukee (MKE) and Chicago. The aircraft climbed to 2,500 feet and proceeded on an approximate course to Oshkosh. At 10:35 the flight made its initial contact with Oshkosh tower stating, "...we're about, seven northeast, two thousand five hundred, VFR." The crew were cleared for a runway 27 landing at 10:36. At that same time, an Air Wisconsin Twin Otter turboprop plane was on its way from Sheboygan (SBM) to Appleton (ATW) at the same altitude. An in-flight collision occurred at 10:36:47 over Lake Winnebago, at an altitude of approximately 2,500 feet. Explosion and fire followed the and both aircraft fell into Lake Winnebago. The accident occurred in hazy sunlight below a scattered cloud layer.
Probable Cause:
PROBABLE CAUSE: "The failure of both flight crews to detect visually the other aircraft in sufficient time to initiate evasive action. the Board is unable to determine why each crew failed to see and avoid the other aircraft; however, the Board believes that the ability of both crews to detect the other aircraft in time to avoid a collision was reduced because of the atmospheric conditions and human visual limitations."
Accident investigation:
 |
|
Classification:
Mid air collisionLoss of control
Sources:
» NTSB-AAR-73-9Follow-up / safety actions
NTSB issued 6 Safety Recommendations
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Photos
accident date: 29-06-1972
type: Convair CV-580
registration: N90858
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Green Bay-Austin-Straubel Field, WI to Oshkosh-Wittman Field, WI as the crow flies is 65 km (41 miles).
Accident location: Approximate; accuracy within a few kilometers.
Distance from Green Bay-Austin-Straubel Field, WI to Oshkosh-Wittman Field, WI as the crow flies is 65 km (41 miles).
Accident location: Approximate; accuracy within a few kilometers.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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