Investigators into EgyptAir's plane crash need at least 12 days to re- Cover its black boxes as they aWait a Ship that can retrieve them from the bottom of the Mediterranean, investigation sources said on Sunday. The Airbus A320 plane crashed into the Mediterranean with 66 people on board during a May 19 flight from Paris to Cairo, after disappearing from radar Screens. Investigators are in a race against time to find the flight recorders, known as the black boxes, which have enough bat- tery power to emit signals for four or five