This data point is one of several key mysteries investigators are exploring as they seek to explain what caused the nation's worst air disaster in more than a decade, aviation experts said.

The 12th Aviation Battalion, which was flying the helicopter, was placed on a 48-hour pause, Defense Secretary Pete Hegseth said.

There were 60 passengers and four crew members on the American Airlines flight, and three soldiers aboard a training flight on the Black Hawk helicopter.

Elon Musk pushed Federal Aviation Administration Chief Michael Whitaker from his post just 10 days before the deadly plane and Black Hawk helicopter crash over Washington, DC. Musk, a close Trump advisor who also heads the Department of Government Efficiency (DOGE) had demanded Whitaker step down after the erstwhile FAA chief proposed more than $600,000...

Military officials say the Army Black Hawk helicopter involved in a midair collision Wednesday in Washington D.C. was based out of Fort Belvoir, Virginia, and was taking part in a training flight. Fort Belvoir is about 17 miles south of Reagan National Airport.

A Black Hawk helicopter collided with American Airlines Flight 5342 Wednesday night as it was landing outside DC

President Trump said Wednesday night that he had been briefed on the collision between an American Airlines plane and Army Black Hawk helicopter and thanked first responders. The new transportation secretary, Sean Duffy, said he was directing resources to support the NTSB in its investigation of the crash. CBS News' Ed O'Keefe has the latest.

A regional jet carrying 64 people collided with an Army Black Hawk helicopter. Reagan National Airport grounded all flights.

Retired Lt. Col. Darin Gaub, a former Black Hawk helicopter pilot with thousands of hours of flight time, including in D.C. airspace, speaks about the deadly collision over D.C. between a passenger jet and Army helicopter.