A lot of the crashes are due to equipment failure. Take a look at the series "Aviation Disasters". A pilot is needed to figure out what is wrong, and to compensate to bring the airplane back. A computer program can't do that.
Such is far, far more complex and nuanced than dealing with a failure on a car. Just take Sully's landing on the Hudson after a flock of geese took out his engines. What computer program could have figured out why the engines failed, and what was possible for the airplane to do? Evaluate the weather conditions, and make the best choice of landing spot? Phooey.