Since its creation in 1967, the agency reports it has investigated more than 153,000 aviation accidents and incidents.

Two planes aborted landings at Reagan National Airport in the past week due to military helicopters in their flight path, according to the Washington Post.

Air crash investigations can take months, and federal investigators told reporters they would not speculate on the cause.

The victims included teen figure skaters with their mothers and coaches, a college student coming from her grandfather's funeral, two Chinese nationals and a group of hunters.

Even in peak flying conditions, experts say, the airspace around Reagan Washington National Airport can challenge the most ...

An Army Black Hawk helicopter collided with a regional jet near Ronald Reagan Washington National Airport on Wednesday ...

Latest news and live updates after an American Airline jet collided with a Black Hawk helicopter over the Potomac River.

Airlines have issued travel waivers to help passengers whose flights into and out of Washington, D.C., were affected ...

An American Airlines passenger jet and a US Army Black Hawk helicopter collided in midair near Ronald Reagan Washington National Airport ...

Investigators confirmed they have recovered a cockpit voice recorder and a flight-data recorder from American Eagle Flight ...