Jeff Les News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Be 20,000 feet or higher to be visible by radar. >> when the -- les, when the black boxes, the data recorder et cetera are found and the cockpit voice recorder are found. it could take years, it could happen this week. but when it happens, what is the single most critical information we can glean from that? >> i would start with altitude. what the variance was between the time that altitude was requested and then we lost contact with them when that request was denied. or they were given that clearance to 34,000 feet. altitude would certainly tell a lot. there's thousands of parameters as we kn...

A -- the ability to float, a boat if you will for a little while. you're a commercial airline pilot. yes, it happened here on the hudson river, the miracle on the hudson. is it possible in the java sea with those weather conditions? >> of course it's possible but not likely with the success that captain sullenberger had. the ditch switch what it really does primarily is it closes the outflow valves which are responsible for pressurization they open and close according to pressure. and actually captain sullenberger did not and jeff skiles did not close that switch. they beat themselves up over ...

We've discussed military airplanes have a deployment system where they -- where the elt, the emergency locator transmitter, physically comes out of the airplane and they can find it floating. but at this point commercial aircraft don't have that system. >> and, jeff, this question comes from chaz tweeted us is it possible the plane made a safe landing on the sea but was taken away by a wave the emergency door was opened, right? they are talking about the emergency door was found and the slide was found. we were talking about it in the last segment. possible? >> we were talking about it during ...

Now, these black box pingers don't always work. they didn't work in the case of air france 447. >> it took two years. >> and that's why it took two years. >> yeah. >> we can't assume that they work but you should be listening. so yes, 30 days is the lifespan of these -- the batteries, the power of the batteries. >> got about three weeks left. >> should be plenty of time. it can't be very far. >> jeff les, good to have you on. thank you for being here. thank you for joining me. i'm poppy harlow in new york. coming up a reported sighting of a tornado in mississippi. a lot of treacherous weat...

Navy ships and other ships that were there. but they successfully ditched with i believe all surviving passengers. >> because one of the theories here that some people are talking about is that if it did that then it could have floated for a while but could have been overcome by a big wave given the weather situation there. is it even responsible to be talking about this as a possibility? >> it seems a little implausible with the sea conditions and the weather that we're talking about. you know, i go with what jeff is saying. we need to keep our minds open to the potential break-up in flight o...