think of. what do you think about the possibility of that? >> in the altitude in those conditions, icing can happen at any time of the year no matter what the temperature is on the ground first and foremost. i have no doubt that icing in some way or fashion might have a big impact on this scenario, however, the scenario that people are talking about, that icing caused the engines to stop i think is a little more simplistic and frankly not as catastrophic as probably what happened. if, in fact, the engines did flame out, and there are safeguards against this whenever a pilot flies into this weather, you put on the ignition system, you keep the igniter going. it's like turning the car keon constantly to make sure the engine doesn't go out, it would potentially if that wasn't working or the pilot forgot to do it, you could get a dual flame out. if that happened you could still fly.