Houghton – Ironwood – Green Bay – Oshkosh – Milwaukee – Chicago

On June 29, 1972 at 10:37 AM, Houghton – Ironwood – Green Bay – Oshkosh – Milwaukee – Chicago experienced a crash involving Convair CV-580, operated by North Central Airlines, with the event recorded near Appleton Wisconsin.

The flight was categorized as scheduled revenue flight and the reported phase was flight at a lake, sea, ocean, river crash site.

5 people were known to be on board, 5 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 3, crew fatalities: 3, passengers on board: 2, passenger fatalities: 2, other fatalities: 0.

The listed crash cause is human factor. The airplane was on its way from Green Bay to Oshkosh, flying at an altitude of 2,500 feet in relative good weather conditions when it collided with an Air Wisconsin De Havilland DHC-6 Twin Otter 200 registered N4043B. En route from Sheboygan to Appleton with six passengers and two pilots on board, the Twin Otter was descending to Appleton Airport. At the time of the accident, both airplanes were flying under VFR in an uncontrolled airspace. Following the collision, both aircraft crashed into Lake Winnebago, some five miles southeast of Appleton Airport. Debris were found floating on water, both airplanes were totally destroyed and all 13 occupants were killed.

Aircraft reference details include registration N90858, MSN 83, year of manufacture 1969.

Geospatial coordinates for this crash are approximately 44.2614°, -88.4070°.