Investigators so far have highlighted several factors that may have contributed to the collision, which left 67 people dead.

The Army goggles would have made it difficult to see the plane's colored lights, which might have helped the Black Hawk ...

The National Transportation Safety Board questioned witnesses Friday on collision avoidance technology and organizational ...

The National Transportation Safety Board (NTSB), the US agency tasked with examining major accidents, held hearings from ...

The hearing opened Wednesday with a video animation showing where the helicopter and airliner were leading up to the collision. It showed how the helicopter flew above the 200 feet (61 meters) ...

The NTSB heard testimony from air traffic controllers, the Federal Aviation Administration and the Army about the mid-air collision of an Army helicopter and passenger plane.

The Federal Aviation Administration said on Friday it is planning additional helicopter route changes near Ronald Reagan ...

A three-day National Transportation Safety Board hearing on the deadliest U.S. aviation accident in decades dug into problems ...

The National Transportation Safety Board wrapped up a three-day investigative hearing into the mid-air collision between a ...

Long-standing concerns about military helicopters flying in crowded airspace and worries over short staffing among federal ...