American Airlines passenger jet and an Army helicopter collided as the plane prepared to land at Washington D.C.’s Ronald Reagan National Airport. Both plunged into the Potomac River, killing all 67 people aboard.

Black Hawk helicopter may not have heard order to go behind American Airlines jet - The Army helicopter appeared to be experiencing other issues with its communications and technology, according to sa

The National Transportation Safety Board plans to brief reporters Friday on its investigation into the tragic midair collision between an American Airlines passenger jet and an Army helicopter in January.