Slamming some western media outlets for speculating that one of the pilots of the doomed Ahmedabad-London Air India Dreamliner moved the switches from run to cutoff - starving the engines of fuel and causing the crash - deliberately, an aviation expert has said the math does not add up.

The Aircraft Accident Investigation Bureau (AAIB) investigating the June 12 crash, in which at least 260 people were killed, including 241 on board the flight, released its preliminary report on the crash last week, and one of the key points that emerged was that the fuel switches moved within a gap of a second.