Preliminary findings into last month’s Air India plane crash suggest the aircraft’s fuel control switches were turned off, causing a loss of engine thrust shortly after takeoff.

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

A preliminary report on last month’s Air India crash suggests that fuel to the plane’s engine was cut off just seconds after the plane took off. According to the report, the fuel cutoff switches for both engines shifted from ‘RUN’ to ‘CUTOFF’—one after the other,