RONKONKOMA - Hundreds of air traffic control jobs could stay on Long Island if MacArthur Airport gets the green light to build a new control center on airport grounds. The Federal Aviation Administration (FAA) announced today that its new, $220 million control center is definitely coming to New York, although it wouldn't specify where. The center would combine its aging facilities in Westbury and Ronkonkoma into a more modern one with 850 workers.Today, top officials and the FAA's acting administrator toured unused land at MacArthur. The FAA says land at the Nassau Hub and at Gabreski Airport in Westhampton Beach is being considered, as are spots in Selden and Calverton. Town of Islip officials believe MacArthur has a leg up on competition because the airport's land is already under the FAA's jurisdiction.Officials hope FAA picks MacArthur for new air traffic facility