NTSB investigators have recovered the Black Hawk helicopter from a Washington, D.C. collision with an American Airlines airplane from the the Potomac River. Parts of the wreckage are being transported to Ronald Reagan Washington National airport for further examination.

The Army Black Hawk helicopter involved in the fatal midair collision in Washington, D.C., had a tracking system turned off, Sen. Ted Cruz, R-Texas, said.

The soldiers on the helicopter that collided with an American Airlines jet on Wednesday night were from the 12th Combat Aviation Battalion based in Virginia.

Data retrieved by the National Transportation Safety Board confirmed the Army Black Hawk helicopter that crashed into a passenger plane near D.C. was flying too high.

In an update on Tuesday, officials say that transcriptions for both aircrafts cockpit voice recordings are ongoing.

Sixty passengers and four crew members from the plane and three Black Hawk helicopter personnel were killed, and a recovery mission is underway.

Data from air traffic control radar showed the military chopper was flying at 300 feet on the air traffic control display at the time of the fiery crash, according to the NTSB.

A key safety system was turned off in a US army helicopter when it crashed into an American Airlines flight last week, killing 67 people.

Audio has been posted on social media which purportedly reveals the conversation between the control tower at Ronald Reagan National Airport (DCA) and an Army Black Hawk helicopter shortly before it collided with an American Airlines flight carrying 64 people on Wednesday. The aircraft then crashed into the Potomac River.