Northwest Orient Airlines Flight 307 was a scheduled domestic flight in the United States routing Washington, DC–Detroit–Madison–Rochester–Minneapolis-St. Paul–Winnipeg. On 7 March 1950, the flight was operated by a Martin 2-0-2, registeredN93050, when it crashed into a house on approach to Minneapolis-Saint Paul International Airport after first hitting a flagpole. The three crew members and ten passengers on board were all killed, as were two children in the house.
Flight 307 was attempting to land at Minneapolis-Saint Paul International Airport the area had blowing snow. The left wing hit a 70 foot flagpole about 4,180 feet from the touchdown point and 650 feet west of the approach center line. The aircraft was about 3.8 miles northwest of the airport when a section of the left wing detached and the aircraft dived into the house at 1116 Minnehaha Parkway West from a height of about 300 feet. The aircraft was destroyed by fire and two children in the house were killed.