This flight went pretty well most of the way. I've been flying Eaglesoft's Citation X 2.0 for a while now, and most of the time the FMS performs well, but sometimes it does weird things.
In this case I was lucky until I was nearly over Denver, going north to make a U-turn and come back into runway 17R. The VNAV wouldn't descend, so I had to force that by hand. Then, somehow, while I was looking at something else, VNAV commanded a 6000-fpm climb, which put me nearly into a stall and activated the stick shaker and so on. It took a while to get control of the airplane, and my full load of passengers was not happy. I had to wrestle with the FMS (which I eventually gave up on) and the autopilot to come around to land, and somehow I ended up landing on the wrong runway, 16R instead of 17R. Fortunately there wasn't too much traffic at KDEN, and ATC had just signed off. Still, the latter part of this flight was a mess.
