FAA Administrator Bryan Bedford said Thursday that the June crash of an Air India flight that killed 260 people does not appear to have been caused by a mechanical problem with the aircraft's fuel control switches, which have emerged as a major focus in the Indian government's investigation into the disaster.

Sumeet Sabharwal, 56, was the captain on the flight, while Clive Kunder, 32, was the co-pilot who was flying the plane. Together, the two pilots had more than 19,000 hours of flight experience - nearly half of it on the Boeing 787. Both had passed all pre-flight health checks before the crash.

Investigators released a preliminary account of the crash, describing how the plane struggled after its fuel supply was cut.