India, June 19 -- Investigators believe the Air India Boeing Dreamliner had its emergency-power generator operating when it crashed last week in Ahmedabad, the Wall Street Journal reported on Wednesday citing people familiar with the probe. The system, known as the Ram Air Turbine (RAT), generates electricity and hydraulic pressure to ensure pilots can control the plane even if both engines fail. The preliminary finding raise questions about whether the plane's engines functioned properly during takeoff, the report said. The Boeing 787-8 Dreamliner carrying 242 people bound for Britain's Gatwick Airport began losing altitude seconds after takeoff, and crashed within seconds.P9...