CNN The Situation Room December 31, 2014 23:20:00
Record the information available. >> reporter: he's a cautious man for a job that requires patience lots of patience. >> we obtain a roll of data file. >> reporter: the boxes contain a wealth of information, up to 2,000 separate pieces from the data recorder alone. high technology built into a waterproof fireproof, shock proof shell. at the end of the analysis can be this -- an animated representation of the tragedy. this one from a 2010 training flight. two dead after a simulator engine failure went wrong. >> the symmetry couldn't be controlled and the aircraft ended up impacting the train un...