joining us now is cnn aviation analyst peter goelz, a former managing director of the ntsb. peter, thank you for being with us. there's been a discrepancy on just how high the aircraft were when this crash happened, right. the plane's data recorder showed 325ft roughly, but air traffic controllers said they never had an indication that the helicopter went above 200ft. and the head of the ntsb says investigators pulled data to help understand the discrepancy. what could it be? >> well, first. >> it's preliminary data. >> and there this is all accident. investigations are complicated. >> and they take some time to make sure that every piece of data that you get from the recorder, from. >> the flight. >> controllers. >> is accurate. and most. >> importantly. >> synced up second by second. if the helicopter could very well have been. at 200ft sometime before the accident, but we won't know until probably later this week or early next week when they get the synchronization done and they examine all of the available information that they've got, which includes the data recorder fro

more perspective, i'm joined now by cnn aviation analyst and former managing director of the ntsb, peter goelzr, great to see you. so help elaborate now, further on what is the kind of information that they will be able to glean from these black boxes? and now the black box being retrieved from the black hawk helicopter as well? >> well, the critical turn was. >> discovering that black box. >> from the black hawk, that it had. >> an audio. >> track in it. >> you want to know what that flight. >> crew was up to. >> in the minutes leading up to the crash? >> did they. >> actually see. >> the plane? >> the air traffic controller warned him. >> twice to be. >> on the alert for. >> the psa for the regional jet. were they looking at the regional jet? were they looking at another jet? and then you'll get a further look into into the totality of the mission as you go back in time. you see, were these guys performing their checklists? were they performing? you know, was this a tight mission? and that will help give the investigators a picture of of the black hawks. uh, behavior and the black box from t

and i want to bring in cnn aviation analyst peter goelz. now, he's also a former ntsb managing director. peter, thank you so much for being here with us as we continue to get new information today about, especially this dc plane crash. we heard from those dc officials just a short time ago, really focusing in on those recovery efforts and really talking about the incredible care they are taking and how precise they are trying to be as they work to recover all of those victims from that plane crash. >> well, you know, family assistance. >> is a relatively new. assignment for the ntsb. >> it wasn't. >> until 1996 that congress and the. >> president gave ntsb the authority. >> to operate. >> a family assistance. >> program at mass transportation. >> casualty events. before that. >> it was very spotty. >> and i. >> have to say that this is one of the finest, uh, aspects of the ntsb effort. uh, they understand, uh, the devastation that these kinds of events can take place, and they are incredibly sensitive to the needs of the families. so it was

analyst peter goelz says he doesn't think that helicopter corridor is ever going to be reopened, fredricka. >> oh, really? okay. brian todd at reagan national airport, thank you so much. all right, well, as the investigation intensifies, we are learning more about the crash victims. ed lavandera looks at the lives lost. >> the losses are staggering as. >> the. >> stories of victims lost. >> in the midair collision come. >> to light. >> the livingston family. >> was. >> returning to their. home in virginia. >> the family. >> of. >> four was in. >> wichita for the u.s. figure. >> skating championships last weekend. lindsey fields, a. >> community college. >> biology teacher. >> from kansas. >> promising youth. >> skaters. >> angela yang and sean kay and their coach. alexander sasha kirsanov, and. >> luciano and. >> franco aparicio, a father and son from chile. skating champion. lorenzo arellano lost four friends in the crash. >> just really sad. they all have so much potential. >> sadness has reached every corner of the country. young skaters in california. their coach knew. >> many of the.

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