An investigative report on the Jan. 29 crash that killed 67 people revealed a series of failures leading up to the collision.

A ‘New York Times’ investigation into the Jan. 29 midair collision between an American Airlines passenger jet and a U.S. Army Black Hawk helicopter found that the captain who was flying the military aircraft was not suffering from any medical impairment.

Black Hawk pilot Rebecca Lobach failed to follow her flight instructor in the moments before colliding with a civilian airliner over Washington, D.C., according to a new report.