This report explains the accident involving United Express flight 5925, aBeechcraft 1900C, and a Beechcraft King Air A90 that collided at the intersection ofrunway 13 and runway 04 at Quincy Municipal Airport, near Quincy, Illinois, on November19, 1996. Safety issues in the report include the importance of emphasizing carefulscanning techniques during flight training, Beech 1900C certification standards andcompliance with requirements on door jamming, the certification of small airports used byscheduled commuter airlines, and aircraft rescue and fire fighting protection on scheduledcommuter aircraft having 10 seats or more. Safety recommendations concerning theseissues were made to the Federal Aviation Administration.