DC plane crash live updates: 41 sets of remains have been recovered
An American Airlines regional jet went down in the Potomac River near Ronald Reagan Washington National Airport.
Aviation Experts Suspect Black Hawk Did Not See American Airlines Plane Before Deadly D.C. Crash: 'It Should Not Have Happened' (Exclusive)
Aviation experts tell PEOPLE it's possible that the U.S. Army Black Hawk helicopter did not see the American Airlines passenger plane before the two collided on Wednesday, Jan. 29, killing 67 people.