It's one of the most important pieces of forensic evidence following a plane crash ... recovered the black boxes from the passenger jet that crashed in the Potomac River just outside Washington ...
Earlier that night, a U.S. Army Black Hawk helicopter ... the day after the crash, Green was the Ground Operations Commander on the eastern side of the Potomac River, responsible for overseeing ...
Investigators hope to reconcile the altitude differences with data from the helicopter's black box, which is taking ... after it plunged into the Potomac River. They also said they plan to refine ...
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American Airlines flight forced to abandon landing in Washington, D.C., to avoid crashAn American Airlines flight narrowly avoided collision on Tuesday after it was forced to pull up to avoid smashing into ...
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