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.

The London-bound plane had barely left the runway at Ahmedabad airport before it careened back to earth. Everyone on board was killed, except for one passenger.

Investigators are probing the wreckage and cockpit recorders to understand what went wrong just after take-off. The Air India flight climbed to 625 feet in clear weather before losing location data 50 seconds in, per Flightradar24. Saturday's 15-page report offers early insights.