Investigators have begun looking into the medical records of Captain Sumeet Sabharwal, the pilot who flew the ill-fated Air India flight that crashed after takeoffSabharwal, 56, who has been an Air India employee since 1994,

The captain of the crashed Air India jet is likely to have cut off the fuel supply before it went down in Ahmedabad, US officials believe.

Black box recordings reveal Sumeet Sabharwal remained composed as his first officer, Clive Kunder, appeared to panic when the supply to both engines was suddenly cut.