Looks to me like he confused driving and flying. Early in the video when he adds throttle with his hand, his right leg seems to press hard on the rudder pedal. Maybe he thought he was pressing the gas pedal in a car. That is what caused him to make a sharp right turn off of the runway and continue turning right towards the building. We then see him turning the yolk to the right, probably thinking he is turning a steering wheel, to try to turn away from the building.
|