1924 July 24, Saudi Arabia, AN4 303

    “Another celebrated case took place on July 24, 1924, when Lt. W.C. Day and Pilot Officer D.R. Stewart took off in a single-engine biplane for a routine patrol over the Arabian Desert. When they failed to return, a search party went looking for their plane. It was found the next day, parked on the desert, completely intact, and in excellent working order. There was gasoline in the tank, and no sign of violence. The footprints of the two men were cleanly visible in the sand. They had taken a few steps away from the plane... and then the footprints stopped. ” 

- Flying Saucer to the Center of your Mind, p. 178.