there's any kind of problem, weakness in the manufacturing process of these particular parts. and that will be part of the investigation. >> yeah, as we heard during the news conference, the faa says the plane was i think delivered in november. i mean, that's not long ago. is it a concern that an aircraft that new has a problem this early in its flight? >> yes, it is. because, you know, over time, over the last two or three decades every time that newer aircraft are introduced, the safety record improves. why? because we have so many more safety improvements, safety inventions, collision avoidance, better flammability reduction, better standards in the survivability of the aircraft, better avionics, better on weather. all these improvements have made each newer and successive model of aircraft safer.