Experts ask why Black Hawk helicopter may have been flying above allowed altitude before crash
This data point is one of several key mysteries investigators are exploring as they seek to explain what caused the nation's worst air disaster in more than a decade, aviation experts said.
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Everything We Know about the Airliner and Black Hawk who Collided On Approach to Ronald Reagan Washington National Airport
Multiple fatalities have been reported after a horrific incident involving American Airlines flight 5342 and a U.S. Army ...