The Unusual Vibrations on United Airlines Flight 173

A few years later, United Airlines Flight 173. This was December 28th, 1978. They left Denver heading to Portland. And they noticed that there were these unusual vibrations when they were trying to prepare to land. So yaw is like how you turn in a car, right or left. A plane can turn and maintain a level altitude in the same way. It's all this happened because no one's paying attention to the cockpit. Nobody was watching the fuel gauge. The fuel is continually being burned. I think they discover they're about to crash like 10 seconds before they hit the Everglades...and it was a horrible catastrophe.