Technology that would have allowed air traffic controllers to better track the movement of an Army helicopter was turned off at the time of the crash, Sen. Ted Cruz, R-Texas, said in an interview Thursday.

The Army helicopter that collided with a passenger jet last week in Washington had its tracking technology turned off at the time of the crash, U.S. Senator Ted Cruz told the New York Times. The technology allows air traffic controllers to better track the movement of an aircraft.

After American Airlines Flight 5342 and a U.S. Army helicopter collided mid-air, officials shared insight into the respective pilots’ communication with air traffic control.