A 77-year-old civilian pilot who had flown planes since he was a teenager was killed when he crashed his biplane Sunday while performing a low-to-the-ground stunt maneuver during an air show at Travis Air Force Base in Fairfield, authorities said. Officials said Eddie Andreini of Half Moon Bay was piloting the Stearman biplane when it crashed in an open field away from spectators at 2:05 p.m. Black smoke rose from the wreckage as the tens of thousands of people who had flocked to the "Thunder Over Solano" show were evacuated from the base.