Black box search in DC plane crash: What is it and how does it work?
Every commercial aircraft must have two black boxes-one to record flight data like airspeed and altitude, and the other to ...
US restricts helicopter flights after Washington crash, 'black boxes' recovered
U.S. authorities restricted helicopter flights near Reagan Washington National Airport on Friday, after a midair collision ...
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US limits helicopter flights after midair crash, officials recover black boxes
US authorities restricted helicopter flights near Reagan National Airport after a midair collision killed 67 people.
Progress made in recovery efforts on Potomac River
Federal officials say they've recovered black boxes from the plane and helicopter involved in Wednesday's deadly crash in ...
DC plane crash latest updates: Flight recorder 'black box' from army Black Hawk helicopter recovered from wreckage
Flight recorder 'black box' from army Black Hawk helicopter recovered from wreckage - None of the 67 passengers and crew are believed to have survived ...