Investigators have uncovered numerous factors that contributed to an Army helicopter and a passenger airplane colliding over Washington, D.C., last January, killing 67 people in the deadliest U.S. air ...

An aged helicopter fleet and inexperienced pilots from nearby Fort Belvoir had raised “widespread concern” among local pilots before a midair collision killed 67 people. Helicopter helmets and a model ...

The U.S. government admitted Wednesday that the actions of an air traffic controller and Army helicopter pilot played a role in causing the collision last January between an airliner and a Black Hawk ...