with all the still that richard casano has in operating this plane, we're barely in the air. this is the upper yellow line. that's the line that shows we're about to rise to fast. the bottom line, it says we're about to go too slow we're going to fall to the ground. let me show you what happens if you go over the top and decide to descend at that rate. mitchell, push us over the top. >> let's do it. >> reporter: there's going to be a tremendous g-force that builds up, and the alarms, the sc nrven -- sink rate. this is where stuff is falling off the airplane. the airplane would begin to break apart in the air, pieces