New Delhi, July 12 -- Both switches feeding fuel to the two engines of Air India flight 171 were cut off followed by pilot confusion before the plane crashed in Ahmedabad, seconds after taking off, the first investigation report into the crash has revealed.

It said that one pilot asked why he had shut off the fuel, and the other responded he didn't do it.

The crash on June 12 was the first fatal disaster involving a Boeing 787, killing a total of 260 people - all but one of the 242 people on board the aircraft died - when the plane ploughed into a medical college hostel.

The preliminary report by the Aircraft Accident Investigation Bureau, released on Saturday, recommended no action for now for the operators of Boeing 787-8 planes.

At...