United Seeks Return of Airport Slots: United Airlines petitioned the U.S. government to return 36 takeoff and landing slots at O’Hare International Airport that it said were taken from United and given to foreign carriers. The action by the Federal Aviation Administration forced United to cancel all or part of 36 domestic flights, United charged in its petition. The slots were withdrawn for the 1992-93 winter season under an FAA policy that grants foreign carriers’ demands for access to the Chicago airport by eliminating domestic service, United said. “No other country in the world sacrifices its domestic carriers, domestic service and domestic jobs to sustain foreign companies in this way,” United Chairman Stephen Wolf said. FAA officials weren’t available for comment.