Officials want to permanently keep helicopters away from commercial jets taking off and landing at a busy Washington, D.C., ...
The US National Transportation Safety Board confirmed on 11 February that it is done examining pieces of the MHIRJ CRJ700 and Sikorsky H-60 Black Hawk that collided and fell into the Potomac River.
More than 80 commercial planes have crashed in the U.S. since 1970.
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