Wednesday night’s crash of an American Airlines commuter plane in Washington could be one of the worst disasters for the Fort Worth-based airline in more than two decades.

An American Airlines plane carrying 60 passengers and four crew members collided with an Army Black Hawk helicopter outside Reagan National Airport near Washington, D.C. Wednesday night. A D.C. fire official said Thursday that “we don't think there are any survivors from this accident" and "we are switching from a rescue operation to a recovery operation.

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

A passenger jet collided with an Army helicopter Wednesday near Reagan Washington National Airport.Four crew members and 60 passengers were aboard the jet, per a statement from American Airlines.A military spokesperson said the UH-60 Black Hawk helicopter was on a training flight.

“A PSA Airlines Bombardier CRJ700 regional jet collided in midair with a Sikorsky H-60 helicopter while on approach to Runway 33 at Reagan Washington National Airport around 9 p.m. local time,” the Federal Aviation Administration (FAA) said in a statement.

Officials say a PSA Airline passenger airliner and an Army helicopter collided Wednesday night in Washington, D.C. Here's what we know about the airliner's Ohio ties.

An American Airlines regional passenger plane with a seating capacity between 66 and 78 collided with a helicopter near Ronald Reagan Washington National Airport in Washington, D.C., on Wednesday, Jan.

Timothy Lilley, the father of American Airlines pilot Sam Lilley, says his family was helping his son plan for his wedding before the fatal plane crash in Washington, D.C.

The father of 28-year-old PSA Airlines co-pilot Sam Lilley, who was killed in the deadly collision near Ronald Reagan Washington

A timeline of the tragic collision between a commercial plane and a Black Hawk helicopter over the Potomac River, with insights into the ongoing investigation.

Watch as the National Transportation Safety Board hosts a media briefing on its investigation into Wednesday’s mid-air collision near the Ronald Reagan Washington National Airport.