here. they will be accommodated in the little village near in a town. what they expect to be able to see is an ongoing effort. we are expecting to see helicopters again but so far, none of the victims' bodies have been recovered from the mountainside yet. >> what a gruesome task all of that is. nic, thanks very much. we will get back to you. crash investigators have managed to hear some audio from one of the black boxes. that would be the cockpit voice recorder. so far, they have only found the outer shell of the flight data recorder. let's go to our aviation correspondent rene marsh. she is working this part of the story. what are you learning? >> well after an accident a plane's flight recorders are the priority for investigators. these recorders are the most critical pieces of evidence essentially capable of unlocking the mystery of what went wrong. what you're looking at here is this is what happens when it gets taken to the lab. that board you're looking at there, that is the crucial piece. that is the memory board which will hold all of that critical