An airplane crashed into the frigid waters of the Pacific Ocean after 'flying erratically' near an airport south of San Francisco Sunday evening, authorities said. Sgt. Philip Hallworth of San Mateo County Sheriff´s Office said crews were searching for the plane that went down in Half Moon Bay around 7:15 p.m.. Officials have recovered some wreckage, reports ABC San Francisco, but there is still no word on possible survivors. It's not clear how many people were on board at the time of the crash. The crash occurred a few miles from the Half Moon Bay Airport on the Cabrillo Highway,...