Add Yahoo as a preferred source to see more of our stories on Google. Air traffic controller 'left work early' before deadly crash as helicopter's flight height comes into question A supervisor ...

An air traffic controller managing helicopter and airplane traffic on the night of the Potomac River mid-air collision in January should have informed the crew of the passenger jet an Army helicopter ...

A supervisor allowed an air traffic controller at Ronald Reagan National Airport to leave early, hours before the passenger ...

The National Transportation Safety Board found the probable causes of the midair collision last year included poorly designed flight routes and ignored warnings about risks.

Investigation into deadly midair collision focuses on helicopter flight What happened inside the Army Black Hawk helicopter in the moments before the fatal crash is key to unraveling the disaster, ...