air traffic controllers at times using the wrong flight number, try and guide the plane to an airport. >> cactus 1529. if we can get you, do you want to try to land runway 137? >> we're unable. we may end up in the hudson. >> 1549, it's going to be less traffic to runway 31. >> unable. >> just north of the george washington bridge, the captain aligns the airbus a-320 with the hudson river. he passes the bridge just to the east and continues due south. >> i looked out the window, saw we were actually below the rooftops of manhattan. i said, this is not a good sign, we're not making newark. >> did sully look at you and say we're going in the water, or did you both come to the realization that's where this was going? >> i think it was more it was just the only option we had. there was no -- we weren't going to make it to an airport. and that was the only open spot that we saw. >> if a pilot is forced to ditch, the faa has recommendations for how to do