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A pilot flew unconscious for 40 minutes in Australia, missing air-traffic control calls, when he missed breakfast the morning of the flight.
An investigation by the Australian Transport Safety Bureau (ATSB) found that the trainee pilot hadn’t slept much the night before the flight and had only consumed a chocolate bar, an energy drink and some water.
The pilot was flying a solo navigation flight from Port Augusta airport in South Australia to Parafield outside Adelaide when the incident happened.
Around 40 minutes into the journey, while flying at 5,500ft, he got a headache, and switched the autopilot on.
“Shortly after, the pilot became unconscious,” said the report. He was then unconscious for 40 minutes.
Air-traffic control made multiple attempts to contact the pilot but were unsuccessful, said the ATSB. Another plane nearby then spotted the aircraft, which was then flying over water south-west of Adelaide, and reported that the pilot had regained consciousness.
The pilot then returned to Parafield under the other aircraft’s escort.
According to the report: “The pilot advised that the night prior to the flight he had suffered from a restless night of sleep and was recovering from a mild cold.
"On the day of the flight, the pilot did not consume any breakfast prior to departing from Parafield to Port Augusta.
“During the flight from Parafield to Port Augusta, the pilot only consumed a bottle of Gatorade, some water and a chocolate bar during the stopover in Port Augusta."
As a result, the flight school will ensure students are well rested before a flight and will educate trainee pilots how to manage fatigue, said the ATSB.