Air traffic control
The aircraft was serviced in Columbus, and departed at 1952 hours for Toledo. At 2005 hours the flight was cleared by air traffic control to descend from 10,000 feet to 6,000 feet as it approached Toledo. Air traffic control requested that the flight report its descent, and to report crossing 8,000 and 7,000 feet. The crew acknowledged leaving 10,000 feet. This was the last transmission from the aircraft.