I believe this was the fourth novel based on the series created by Martin Caidin. This one is adapted from the episode written by Edward J. Lakso. The back cover says:

"DEATH CRASH

Steve Austin, Six Million Dollar Man, is called inas expert witness in the trial of Senator Ed Hill. As pilot of the plane and sole survivor, is Hill to be held responsible for the disaster? Apart fromhis pilot's licence, Hill's chances as candidate for the vice-presidency are at stake - any scancal attached to his name will immediately destroy them.

But somehow Hill's story doesn't quite ring trueand as investigations continue, Austin finds himself faced with a terrible dilemma - he owes his life to the Senator but will repaying the debt mean he must compromise his own integrity?"