Officials at the Aviation Safety Council in Taiwan have released data showing the pilot of a TransAsia plane which crashed in Taipei had switched off the working engine.
Forty-three people died earlier this year when the ATR 72-600 aircraft crashed into a river in the Taiwan capital.
The plane, which can fly with one engine, had lost power to its other two engines earlier in the flight.
The report revealed in a cockpit recording, the pilot can be heard saying: “Wow, pulled back the wrong side throttle.”
The report, however, does not assign blame for the crash.
Flight data shows the plane stalled and crashed shortly after the working engine was switched off.
The plane had taken off from Taipei’s Songshan Airport.
It was carrying 58 passengers and crew when it lurched to one side.