Believed it or not, there was one pilot that was unconscious because the carbondioxide was leaked into his plane and it was flown by itself for many hundred kilometers, but the pilot survived .
The pilot who was lucky like that maybe the only one of the world. He was a doctor whose name was Rob Fraser. He was 47 years old. One day he flew a small plane "piper comanche" that town was far to the east about 225 Kilometers. Suddenly, the exhaust gas was leaked and then the carbondioxide came into the plane.when he was conscious he pressed the button "ghost Pilot " or automatic button. After that, the plane was flown by itself about 400 kilometers, and it was landed to the ground safely but not softly becuse of the help of many of trees on the snow field. It was unable to believe that he survived