Business Insider reviewed official briefings, flight data, and air traffic control audio tapes to piece together what happened before tragedy struck.

Here's a look at how the tragedy unfolded, as the cause of the collision remains under investigation. MORE: DC plane crash live updates Wednesday, Jan. 29 5:38 p.m. CT: American Airlines Flight 5342 ...

The FAA and NTSB have launched an investigation into how an American Airlines flight collided with a military helicopter over ...

A timeline of the Washington, D.C., plane crash on Jan. 29 details the moments before and after an American Airlines ...

Planes are once again taking off and landing at Reagan Washington Airport as things get back to normal amid an anything-but-normal situation.

A US Army UH-60 Black Hawk helicopter carrying three crew members – from the 12th Aviation Battalion, based out of nearby ...

American Airlines Flight 5342 was scheduled to land at 9:03 p.m. on Wednesday at Ronald Reagan Washington National Airport.

The National breaks down the timeline of the deadly collision between American Airlines flight 5342 and a U.S. Army Black ...

A midair collision near D.C. has raised concerns over FAA staffing, prompting scrutiny of air traffic control and aviation ...

Hundreds of responders have removed at least 28 bodies from the icy waters of the Potomac River after a deadly plane crash, according to officials as of Thursday morning.

Reagan is one of three U.S. airports governed by a “slot” system, in which the Federal Aviation Administration limits the ...