Comair Flight 3272 was an Embraer EMB 120 Brasilia departing on January 9, 1997 from Cincinnati/Northern Kentucky International Airport for the Detroit Metropolitan Wayne County Airport. While on approach for landing, the aircraft crashed nose down 18 miles short of the airport. All aboard, twenty-six passengers and three crew members, died as a result of the accident.

The National Transportation Safety Board determined that the probable cause was inadequate standards for deicing operations while in flight, specifically the failure of the Federal Aviation Administration to establish an adequate minimum airspeeds for icing conditions, leading to a loss of control when the airplane accumulated a thin, rough accretion of ice on its lifting surfaces.

A contributing factor was the decision of the crew to operate in icing conditions while near the lower end of the operating airspeed envelope while the flaps were retracted. Comair had not previously established unambiguous minimum airspeed values for flap configurations and for flight in icing conditions.