A preliminary report released last week included detail about the fuel, saying that the fuel to the plane's engines appeared to have been shut off.

According to the Wall Street Journal, sources close to the US side of the investigation have said the voice cockpit recording suggests Sabharwal turned off the switches, one after the other, exactly a

NEW DELHI, July 14 (Reuters) - A preliminary investigation into the crash of an Air India passenger jet last month that killed 260 people raises additional questions about the incident and the investigation is far from over, Air India's CEO said in a memo on Monday.