decompression. one is with a maintenance crew forget to turn back on the automatic pressurization. another is from a crack in the fuselage. it s possible. at that point, you would assume if everyone else perished, except for the pilot, presumably there was lack of control surfaces, too. otherwise he would have taken the plane home and delivered the loved ones though perished back to the airport. there must have been something with lack of control of the plane. this is about electrical control system. john cook asks this. he says, what s the probability that an electrical issue rendered the acars and radio systems inoperable. geoffry, what about that? jeffrey thomas. sorry, okay. beg your pardon.
manufactured from 2015 forward. it doesn t help anything in the past. and there are 20,000 planes up there now. could take a lot of time to retrofit. speaking with mark weiss, our aviation analyst, longtime american airlines pilot, he made the point that a boeing 777 has more metal in it than the airbus, which was the air france plane, which has more composite, which is therefore more likely to float, making parts of the 777 less likely to float because that metal content. does that make sense to you? in some respects. i admire mark weiss i know him quite well and he s definitely the knowledgeable person on the 777. but i would argue a little bit that most of the composites on the airplane bus, and i ve been at the factory, i was there when the 380 was being built and observed their manufacturing practices, what s mostly composite on those aircraft, what they focused on is the control surfaces and the mounting of the controlled surfaces to be composite. the fuselage, while it doe
plane. but this one by a 20-year-old pilot. he says the loss of transponders and communication makes perfect sense in a fire. and there was most likely an electrical fire. it was probably a serious event and the flight crew was occupied with controlling the plane and trying to fight the fire. what i think happened is the flight crew was overcome by smoke and the plane continues on the heading probably on autopilot until it ran out of fuel or the fire destroyed the control surfaces and it crashed. yeah, i mean, you know, it s interesting. we re speculating on speculation here. invariably we re wrong, jonathan, because each craft as a unique dna to it. what s interesting about this particular hypothesis it would explain a plane on autopilot flying for six or seven hours. it reminds me of the payne stewart plane where there was decompression and the crew lost consciousness but every reason to believer, that s why the
one-by-one until you have isolated the bad one. if they pull the buses the plane would go silent. as for the flight s ultimate end he suggests that the flight crew was overcome by smoke and the plane continued until it ran out of fuel or the fire destroyed the control surfaces and it crashed. joining me now is former fbi special agent and chief operating officer of the sufan group don berrelli who is a retired captain. the practicality of this latest theory you would turn off the communications your first and foremost priority is aviate and navigate as they say in the business. how does this theory sound to you? strenuous! it s reverse reasoning and it comes from a point of not knowing to a point where we do know something from a beginning where you just can t reason from that point.
plane they don t tell the story. back with me now is bill nye. bill, you went to boeing and also worked separately on black boxes. tell me your experiences and what you believe is the importance of the black box. the black box means you don t know what is inside, that is all. in here, it is bright orange so if you re a diver under water you may find them. or on land you can find them. the idea is, you heard of the flight data recorder. the least important thing it keeps track of is the voices in the cockpit, it keeps track of all the other data on the plane, the control surfaces, the throttle. that sort of thing. the thing in this thin outer shell, it is virtually an indestructible set. it houses the information. and also there will be a pinger which makes a pinging sound. and that lasts about a month? about a month, yeah, several