On 4 September 2000, a chartered Beechcraft 200 Super King Air departed Perth for a flight to the mining town of Leonora, Western Australia. The aircraft crashed near Burketown, Queensland, Australia, resulting in the deaths of all eight occupants. During the flight, the aircraft climbed above its assigned altitude. When air traffic control (ATC) contacted the pilot, the pilot's speech had become significantly impaired, and he was unable to respond to instructions. Three aircraft intercepted the Beechcraft, but were unable to make radio contact. The aircraft continued flying on a straight north-easterly heading for five hours, before exhausting its fuel and crashing 40 mi (65 km) south-east of Burketown. The crash became known in the media as the "ghost flight".

On 4 September 2022, a chartered Cessna 551 business jet registered in Austria was scheduled to fly from Jerez, Spain, to Cologne, Germany. Early in the flight, after takeoff, the aircraft's pilot notified air traffic control about a cabin pressure malfunction. After the aircraft passed the Iberian Peninsula, no further contact could be established.