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 ...
The New York Times8d
Passenger Jet Turned Upward Just Before Deadly Collision
But the sudden change in trajectory was not enough to avoid colliding with a military helicopter ... jet circling to land on Runway 33. Then the controller cleared another jet on Runway 1 to take off.
ABC711d
67 dead after midair collision between passenger jet and military helicopter; Black boxes recovered
An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport after ...