On June 4, 2023, a privately operated Cessna 560 Citation V carrying three passengers and a pilot crashed at approximately 3:23 p.m. Eastern Daylight Time (EDT) in the George Washington National Forest, Virginia, killing the occupants, after the crew had been found unresponsive.The plane involved in the accident was a Cessna 560 Citation V, registered N611VG to Encore Motors of Melbourne, a Florida-based company under the ownership of John and Barbara Rumpel.According to an NTSB spokesman, fifteen minutes after takeoff, air traffic control instructed the pilot to maintain altitude at 31,000 feet (9,449 m), but he did not respond.Two F-16 jets from the 113th Wing at Joint Base Andrews engaged in supersonic flight over the capital region,[4][5] were the first to reach the Cessna, and attempted to contact the pilot.[11][12] The owner of the aircraft has speculated that the crash may have been caused by hypoxia resulting from the loss of cabin pressure, rendering the passengers and the pilot unconscious.