aviation expert on the phone with us this morning perhaps to fill in some of the blanks here. mike, thanks for joining us this morning. from the data you have received so far on this flight. what kind of conclusion cans do you think we are going to end up reaching? the last thing conclusions why have some indications if it really wasn t a 6,000-foot a minute dissent that means something catastrophic took place in terms of the control of the airplane. it s a very sophisticated airplane very safe probably looking at mechanical failure of some kind. what kind of mechanical failure, mike to those of us who are ignorant to those kind of member call failures you say catastrophic all engines stop working on the aircraft? what might have caused that? you might have had a catastrophic like the engine could have come apart. the engine could have stopped very suddenly. any number of things. there could have been a fire on board the aircraft, those kind of things could happen very rapidly, v