A Beechcraft 1900 and a Beechcraft King Air collide at Quincy Regional Airport in Quincy, Illinois, killing 14.

The Beechcraft 1900 is a U.S made twin-engine turboprop regional airliner manufactured by Beechcraft. It is also used as a freight aircraft and corporate transport, and by several governmental and military organizations. With customers favoring larger regional jets, then-owner Raytheon ended production in October 2002.

The Beechcraft King Air is a line of American utility aircraft produced by Beechcraft. The King Air line comprises a number of twin-turboprop models that have been divided into two families. The Model 90 and 100 series developed in the 1960s are known as King Airs, while the later T-tail Model 200 and 300 series were originally marketed as Super King Airs, with the name "Super" being dropped by Beechcraft in 1996.

United Express Flight 5925, operated by Great Lakes Airlines with a Beechcraft 1900 twin turboprop, was a regularly scheduled flight from Chicago O'Hare International Airport to Quincy, Illinois, with an intermediate stop in Burlington, Iowa. On November 19, 1996, the aircraft collided on landing at Quincy with another Beechcraft, a private King Air, that was taking off from an intersecting runway. All fourteen occupants were killed as a result.

Quincy Regional Airport is a city-owned airport 12 miles east of Quincy, a city in Adams County, Illinois, United States. It is used for general aviation but also sees Southern Airways Express flights to Chicago's O'Hare International Airport and St. Louis Lambert International Airport, a service which is subsidized by the federal government's Essential Air Service program at a cost of $1,956,856. The Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2023–2027 categorized it as a national non-primary commercial service facility.