Clues emerging from the moments before an Army helicopter collided with a passenger jet suggest breakdowns in the system meant to help aircraft land safely at the busy Reagan National Airport.

© Kenny Holston/The New York Times

Aviation attorney Jim Brauchle told Fox News Digital that a "combination" of factors could have led to the deadly collision near Reagan National Airport.

The collision of an airplane and a military helicopter was caught on video -- there was a fiery explosion.

U.S. Sen. Mike Rounds, R-S.D., said an investigation into the collision of an American Airlines jet and an Army Black Hawk helicopter at Reagan National Airport will likely involve communication between the two aircraft.

A flight passenger asked on Reddit about the use of the entertainment center when sitting in a two-seat, exit-row chair, with folks on social media weighing in. An etiquette expert shared insights.

American Eagle Flight 5342 crashed into the Potomac River after colliding with an Army helicopter while approaching Reagan National Airport.

© Kent Nishimura for The New York Times