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If you get time after that you can put 7700 on the transponder which will alert anyone seeing your transponder code on the radar it will alert and flash and let the world know that you have a problem but what's different for me is these guys are operating in a big crew so a lot of these things can happen simultaneously. the copilot will have the map and be inpointing the diversion and then the engineer or someone else can maybe put out a radio call at the same time. so these things happen very expeditiously and quickly. i want to take you to the air france 449 disaster. that's the french jet t...

Clear air up to 20 miles away. and if they were flying downwind of the storm, perhaps even further than that. that can cause all sorts of structural damage and can cause compressor failure in the engines and result in complete loss of power. >> what you're describing is ultimately quite catastrophic scenarios here. so the question to you, greg, with the reports that there was no distress signal, rather, sent from that plane. put it altogether. what anthony's describing and certainly you're familiar with those kind of scenarios, as well. that would make sense why pilots would have been trying t...

Has taken this long. what do you take from this transcript? i really do see something significant. when i look at the fact that every single time there was a command given, a transponder code, he reads back his flight number and that transponder code every single time in the transcript kpepts the last time. >> what does that mean? >> three possibilities i'm looking at. one is the transmission was interrupted mid sentence. unlikely because there would have been other interfeerns in there. other would be at that point the pilot -- 12 minutes before the last one. at that time he could have said i...

Act? >> i found it actually astounding when i heard that breaking news earlier. with the information that we have now, brooke, with what we're going on, there's absolutely no indication whatsoever to support that type of a declaration. so you're exactly right. that begs the question, what is it that they know that they haven't shared with us? i found it quite astounding. i was quite surprised. >> what would it be -- forgive me if i seem obtuse. but what would it be if they have this verbal transcript. how would that -- what would they know that we don't to come to that conclusion? >> well, you...

It's called the squawk. you do not receive the squawk until you file your flight plan, receive your atc clearance. that clearance is received usually by a computer printout in the cockpit, and sometimes on a radio transmission. somehow, yes, you could poach a transponder code and put it in, but if you took off as soon as you got the gear up, you would be discovered. it would be the same if somebody stole your credit card, you reported it, and then the thief tried to use the credit card. as soon as they tried to use it, they would be discovered. that would set off some alert bells and the contr...