I don't know if there were two of them in the plane, but Atta did this at
Miami... I think maybe at Miami International, but I'm not sure.

In any event, there were two students in the plane, and they were doing some
training. One student would fly for a while, and then they would switch.
They were on a taxiway when something went wrong with the aircraft. I don't
remember what. But instead of taxiing back to the FBO, or even just calling
the tower to say that they were having trouble, they shut down (maybe the
engine had already quit on the them, I don't remember), left the plane on
the taxiway, and walked to a payphone to call their flight school.