Investigators will detail causes of the midair collision over Washington, DC, and recommend changes

So many things went wrong last Jan. 29 to contribute to the deadliest plane crash on American soil since 2001 that the ...

Timeline of the year since an Army helicopter and plane collided over Washington, DC

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