Investigators probing the deadly crash of Air India flight 171 in which more than 270 people were killed have found that the aircraft’s emergency power system was likely active just before impact.The Wall Street Journal reported that this possibly suggested an engine or hydraulic failure during takeoff,

Air India plane crash investigators find the first of the "black boxes" from the Boeing 787-8 that slammed into buildings, killing all but one of the 242 people on board.