captures hundreds of parameters of data, configuration of the plane, engine performance, heading, altitude how was the plane performing. how were the systems functioning. automaker all of that figures into what happened. this is a fly by wire plane. it is one of those planes that broke the mold if you will when airliners, specifically airbus started to go to a more computerized way of flying with multiple redundancies to take out as much as possible the human factor that could lead to errors. it has been a phenomenal aircraft, with only a .14 fatality rating. .14 out of a million takeoffs experienced a fatality. it is an incredibly safe plane. this morning, we have many more questions than answers. we also know tom, was it december, forgive me that the air asia flight 8501 was an