The midair collision at Reagan National Airport on Wednesday night has presented Sean Duffy with a major crisis just hours after he was sworn in as secretary of transportation.

American Airlines CEO Robert Isom said the National Transportation Safety Board, which is investigating the deadly midair collision between an American passenger jet and a military helicopter, will be the lone authority on the cause and details of the crash.

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.

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.”

The National Transportation Safety Board will lead an investigation, hoping to determine what happened and prevent any similar accidents in the future. There is no reason to believe that the dramatic changes to the federal government made by the Trump administration,

President Donald Trump questioned the Army helicopter in the fatal crash for flying at the same height at an American Airlines plane.

Here's what you need to know about the history of plane crashes in Mississippi. Here's what the NTSB says about where, when, why flight safety failed.

The National Transportation Safety Board will be holding its first briefing into the investigation of the deadly American Airlines plane crash in Washington, DC. Click to watch.

No chute or slides appeared to be deployed from the American Airlines plane, according to J. Todd Inman, a member of the National Transportation Safety Board. “It was a very quick, rapid impact,” he said.

The National Transportation Safety Board was scheduled to provide an update on Thursday on the deadly airplane-helicopter crash over Washington, D.C. Watch live at 2:45 p.m. on Thursday, Jan. 30 in the video player above.