Accident Ends in Murder / The Überlingen Mid-air Collision
Black Box Down
00:00
The Air Traffic Controller's Phone Isn't Working.
The system was in fall back mode because they had taken some parts of it off line to do up grades on it. The air traffic controller screen, like his radar screen, was not up dating as frequently. He could have told the tupolift to climb or descend and he picked the wrong one. Yes, sounds like you shouldn't do maintenance when also the other person's on a break,. You would think, ta, there's never a good time to do mns."
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