The National Transportation Safety Board disclosed new details about the collision between the helicopter and an American Airlines passenger jet over the Potomac River on Jan. 29.

The NTSB gave an update on its investigation into the Potomac River crash between an American Airlines jet and an Army helicopter in January.

The National Transportation Safety Board is examining "bad data" the crew of an Army Black Hawk helicopter may have relied upon prior to their deadly crash with a passenger jet outside Washington D.C.