Fuel control switches for the engines of an Air India flight that crashed last month were moved from the “run” to the “cutoff” position moments before impact, starving both engines of fuel, a preliminary investigation report said early Saturday.

Authorities released the cause of the Air India crash in their preliminary report, following an investigation. The London-bound flight from Ahmedabad crashed moments into the June 12 flight. Only one passenger of the 242 passengers and flight crew survived.

Indian investigators probing the crash of Air India flight 171 said that both engines stopped receiving fuel shortly after takeoff.