A report released by India's Aircraft Accident Investigation Bureau pointed to fuel switches that flipped off during takeoff, depriving engines of power.

The preliminary report from investigators probing the Air India crash that killed 260 people showed that seconds after takeoff, the Boeing 787 plane's engine fuel control switches were switched off briefly,

The US aviation regulator has said fuel control switches in Boeing aeroplanes are safe, following their reported involvement in a fatal Air India crash that killed 260 people in June. The safety of the switches has become a key point of concern after a preliminary report on the disaster was released by investigators on Friday.