no video contact, nothing flt transfor all of those functions to sflmp have an easy explanation for that? not really. they are made where approximate the emergency generator that will bring back -- it will bring on a electric al power. a majorin-flight. something that dropped off radar. it is an ominous circumstance. >> that is indeed. a view shared by many alifts. bringing in david, what we know at this point? what are you focused on right now? >> if you think about what happened in the 370. lost all communications, nope, we don't know if it was reporting, or wasn't reporting. they would have told us, sometimes would have happened. the only other thing i can think of that could have caused a massive failure, is that all of does he could do that to the. should the aircraft land hit the ground in an abrupt manner on the transmitter, there are two. one in the front, one in the back. not very reliable. it is only six years old. from what we know. that altitude at that point. >> the last time we spoke before you, your line dropped out. we listened to adel from egyptair. you said you found sm