They are all boston strong and we salute them. Im anderson cooper. Good night. I hope you were with us during the last hour and you were inspired as watching adrianne hasletdavis story. She is truly boston strong. One thing she wanted to get across to everyone watching is something her grandmother said to her as a kid it is okay to not be okay sometimes. But adrien is doing okay. And she has a long road ahead of her as do many of the survivors but we will root for her along the way. If you are just joining us, we expect a News Conference any moment from Australian Authorities on the search for flight 370. It is 11 00 a. M. In the search area. The newly refined and somewhat
smaller search area. You see it in the red near the top of the screen. The gray is former search areas. The question right now is will it change yet again when Angus Houston, whos coordinating the search effort, steps to the make phone in perth. Will he make bigger news. We will find out shortly and we expect the Pre
that when this ping starts radiating out it hits the temperature layer and then it can come back down. so you ve got these things. so now you re dragging your pinger through here, the tpl, and from here to here, maybe seven minutes. from here to here, maybe it s five minutes. i see. okay. okay. so you may not necessarily be i got a lot of lines going up there. you do. you re going crazy. i don t know what to do with you. let me ask you about, how does the fifth ping, the fifth ping that they do say was a false start. how does that play into this? okay. is that a huge setback? do we learn anything from it? actually yes. here s how. remember all this is all about ruling out, not necessarily ruling in. okay. okay. okay. you re trying to figure out where it s not. testing theories and finding out where it s not maybe. exactly. exactly. so now this airplane flies over here and they drop these sonobuoys. 84 of them, i think it is, 84. they re all over the place.
square miles. right. you ve got about 24 well, about 18 square miles this way. right. between these pings. the first ping they got was a two-hour journey here. so for two hours they were within somehow within that that reach of the pinger. these others are what i m going to call outliers. why is there such a discrepancy, if you will, in the duration of the time? you think this is the most reliable, the two hours plus. without a doubt. then what happened here? what happened down here is they re trying to rule out other areas because they re trying to say is this a false positive or is it real? and so they ran this. then they said, let s verify it. let s move around in this big 25-mile radius and see what else is going on in here. they picked this up. these are probably, most probably, reflections or refractions off that temperature layer that we talked about. there s a temperature layer so
to the panel, can you guys explain. why are there four different locations for where they picked up pings if there is only two black boxes and angus houston saying i think they have been getting pings from a flight data recorder. they have been talking about it just from one, which makes sense. in long range navigation systems a lot of times the system will bounce back from clouds. it is hitting a temperature layer, a boundary layer inside the ocean which allows the ping to reflect off and refract off. just because there is a ping in one location it obviously doesn t mean the black box is under that location. you re saying it is refracted sound. that is right, it is as if you re in a canyon, and the echo reflects back down. it is 160 decibels.
a critical development overnight in the search for flight 370. two new pinger signals consistent with black boxes have been detected. so how much closer are search crews to actually finding the plane? let s bring in our experts, mary schiavo and the former faa inspector p good morning to both of you. so, david, what do you make of it? two additional pings. where is your level of confidence now that this is it? it gets stronger every time we get another ping for me because we re starting to narrow it down. i ve had questions as to why they are so far apart because we re talking about three miles. if you have a temperature layer