Air traffic controllers asked Flight 5342 to switch runways when coming in to land. Black box recordings from the jet and the military helicopter it collided with will help reveal whether this contributed to the accident.

An American Airlines regional passenger jet and a U.S. Army Black Hawk helicopter collided midair and crashed into the Potomac River near Reagan Washington National Airport on Wednesday night. Officials have not provided a death toll but said all passengers and crew on both flights were feared dead.

More than a week after the deadly collision of a passenger jet and a helicopter, crews forged ahead with salvage efforts in the Potomac River.

Divers and salvage crews have recovered the remains of all 67 victims of last week’s midair collision near Reagan National Airport, officials said Tuesday.

Every victim involved in the American Airlines commercial plane collision with a military helicopter last week has been recovered. Officials announced Tuesday that the remains of 67 people — 64 from the plane and three from the helicopter — have been recovered.