A new report by The New York Times breaks down the missteps that led to the deadly DCA plane crash in January.

Pilot error may have played a role in the January collision between a U.S. Army UH-60 Black Hawk helicopter and Bombardier CRJ-700 jet operating American Eagle Flight 5342, which killed all 67 people aboard both aircraft.

Theories have started to emerge around the tragic crash between the Black Hawk helicopter that crashed into a passenger plane in January. The crash shook the aviation world, which saw mistakes from both parties cost the lives of all 64 passengers and three military personnel involved.