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Last updated: 13 December 2019
Status:Definitief
Datum:donderdag 29 juni 1972
Tijd:10:37
Type:Silhouette image of generic CVLT model; specific model in this crash may look slightly different
Convair CV-580
Luchtvaartmaatschappij:North Central Airlines
Registratie: N90858
Constructienummer: 83
Bouwjaar: 1953
Aantal vlieguren:45905
Motoren: 2 Allison 501-D13
Bemanning:slachtoffers: 3 / inzittenden: 3
Passagiers:slachtoffers: 2 / inzittenden: 2
Totaal:slachtoffers: 5 / inzittenden: 5
Botsingsslachtoffers:slachtoffers: 8
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:ca. 8 km S of Appleton, WI (   Verenigde Staten)
Fase: Nadering (APR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Green Bay-Austin-Straubel Field, WI (GRB/KGRB), Verenigde Staten
Vliegveld van aankomst:Oshkosh-Wittman Field, WI (OSH/KOSH), Verenigde Staten
Vluchtnummer: 290
Beschrijving:
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."

Bronnen:
» NTSB-AAR-73-9


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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Green Bay-Austin-Straubel Field, WI en Oshkosh-Wittman Field, WI bedraagt 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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