Funded by the Federal Aviation Administration, the United States made the transponder-based system mandatory for large airliners in 1993, and it is now common on all manner of com ...

At night in an urban environment like Washington, D.C., or northern Virginia, pilots may not be able to see other aircraft and instead may rely on seeing anti-collision or landing lights ...

Authorities are investigating the deadly midair collision over Washington, D.C. Experts call for prudence as facts become ...

Investigators trying to determine what caused last week’s deadly midair collision between a US military Black Hawk helicopter ...

President Donald Trump says he thinks last week’s deadly collision between a passenger jet and Army helicopter wouldn't have ...

Investigators are intensifying their search into what caused the collision ... being taken by either aircraft, running directly into each other in a horrifying blast of light, their wreckage ...

After a fiery impact, both aircraft plunged into the dark and frigid ... captured dramatic communications before and after the collision, which you can listen to below: LiveATC.net, an in-flight ...

Schulman said he saw only "two seconds of it", and "I think I saw the collision ... son “came running down saying he saw a plane crash and the lights go into the water.” ...

Washington (CNN) — As recovery crews endure cold water and miserable rain Friday to attempt to pull more wreckage of American Airlines Flight 5342 and an Army Black Hawk helicopter from the ...

The helicopter was on a training mission when it collided Wednesday night with a commercial plane that was on approach to land at Washington’s Reagan National Airport – a collision that killed ...