India, July 14 -- The identification in the preliminary report of fuel being cut off to both engines shortly after take off as the cause of the Air India plane crash in Ahmedabad last month has prompted airlines to issue directives for checking the locking mechanism in the fuel switches of Boeing 787 aircraft.

The Aircraft Accident Investigation Bureau (AAIB)'s report into the crash, released on Saturday, said fuel control switches were found in the "cutoff" position. The report triggered a debate over whether pilot action or mechanical failure caused the crash, which left 260 people dead. It said that there was no "recommended action" for either Boeing, the maker of the aircraft, or GE, the engine manufacturer, at this time.

Against th...