This data point is one of several key mysteries investigators are exploring as they seek to explain what caused the nation's ...

The Army helicopter that collided with a passenger plane on Wednesday night was on a 'routine annual retraining,' Defense ...

While authorities focus on the cause of the US's deadliest aviation disaster since 2001, families are mourning their loved ...

The soldiers on the helicopter that collided with an American Airlines jet on Wednesday night were from the 12th Combat ...

Sixty-seven people are presumed dead, as tributes flow in for some of the victims of the collision between American Eagle ...

There were the five victims and their families, but also witnesses whose lives have all been changed by the events of October ...

An American Airlines plane carrying 60 passengers and four crew members collided with an Army Black Hawk helicopter outside ...

The helicopter involved in the fatal midair collision on Wednesday night may have flown off its approved path, The New York ...

The data recorders from the plane that were also recovered appeared to be in good condition, officials said. The route used ...

The directive from the FAA included a sharpened focus on the risks and dangers of the jumble of aircraft sharing the crowded airspace near National Airport.