The deadly crash in the Potomac after an American Eagle jet collided with a military helicopter has stirred memories of a long-ago tragedy in Washington, D.C. An Air Florida flight taking off en route to Fort Lauderdale crashed into a bridge and tumbled into the icy Potomac in January 1982.

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.

The National Transportation Safety Board says it has recovered two black boxes that will help provide investigators with answers as to what caused a deadly collision near Washington D.C.'s Reagan National Airport.

The National Transportation Safety Board did not specify how many air traffic controllers were working at the time of the collision.

Black boxes recovered after a jet and Army helicopter collided near DC; 14 still missing as NTSB investigates the deadly crash. Follow Newsweek's live blog.

The midair collision over the Potomac River on Wednesday brings back chilling memories of another tragedy in the same waters more than four decades ago—when Air Florida Flight 90, bound for Fort Lauderdale-Hollywood International Airport,

National Transportation Safety Board Chair Jennifer Homendy said Thursday at a press conference that “we look at facts on our investigation and that will take some time.”

CBS News confirmed only one air traffic control worker was managing the helicopters when the crash between a military helicopter and passenger plane occurred in Washington D.C. That is a job normally done by two people.

It was expected to begin at 4 p.m. but has since then been rescheduled for 5:30 p.m. Once it begins, a streaming of the presser will be added to this story.

Just a day before a deadly midair collision at Reagan National Airport outside Washington, D.C., employees at the Federal Aviation Administration were sent an offer to resign with eight months’

An expert believes that because a civilian aircraft and military chopper were involved in the air tragedy, the investigation may be as comprehensive as any in history.

The 1982 crash happened moments after takeoff in icy conditions in roughly the same place as Wednesday's collision between a jet and Army helicopter.