In the weeks since the crash, the NTSB has been analyzing flight data and damage to determine how this happened.

An American Airlines regional jet collided with a U.S. Army Black Hawk helicopter on Jan. 29. Both aircraft plunged into the Potomac River near Reagan Airport.

Investigators have recovered most of the airplane and helicopter from the Potomac River, but continued searching for objects on the river floor.

Wednesday's crash involving an American Airlines flight and Black Hawk helicopter marked the first commercial crash on U.S. soil in more than 15 years.

Authorities say they have identified all but one of the victims of the deadly collision that happened on January 29.

More than a week after the horrific helicopter-plane collision near Washington, salvage crews have recovered most of the wreckage.

The National Transportation Safety Board (NTSB) is set to provide an update Friday on its investigation into last month’s collision between an Army Black Hawk helicopter and American

The midair collision that killed 67 near Washington and the fiery plane crash in Philadelphia and a plane crash in Alaska that killed 10 are only the most high-profile disasters.