Jondc9, The fact that none of the other hundreds of captains he flew with had a problem with his rudder usage and none of the flight attendants complained about yaw problems when he was flying I don't think he had a problem needing additional training. No captain would let an FO fly like that. Since both engines snapped off during flight. I always thought the vertical stab separated initially from the front causing the severe yawing and gyroscopic forces necessary to cause the engines to separate from the aircraft. I have no proof of this just as the NTSB can't prove he caused the problem.