people more familiar with this, say that the pilot or co-pilot we don t know which one was saying that now we were told earlier it was the co-pilot. but whoever said it should have, in the proper terminology, repeated that frequency, 1:20.9. they did not. not a major transgression. it was a routine flight at 1:19.21, the last transmission. a lot of language like maintaining level, climbing, climbing. nothing out of the ordinary, seeming to us, jim. but again, this is a significant piece of information to now have in your hands over there. investigators have been reluctant to turn this over. a lot of people wanting to see they for the first time, so not insignificant that at least we see these details. reporter: it is, you know, for us, we ve been asking for this since practically day one.