was going on in the final seconds of the flight. >> a lot left to do in this investigation. what happens next? >> we talked about that piece of the chuk of the fuselage that you mentioned they think is in about maybe 80 to 100 feet of water. that's a good sign because you can send military divers down, these elite divers and they can recover this evidence very quickly, the black boxes and so on. there is also now, we're told a u.s. destroyer on the way. it's a destroyer that has that sonar mapping equipment that we all became very familiar with during the missing flight 370 search. that will map the sea bed to give them a better idea of exactly where things are. they'll also have elite divers on that. listen now to the ceo of airasia. >> the plans for airasia now is to ensure that we work with all the regulators to ensure that we will bring a speedy dks for the family s