UPDATE 1-FAA hopes to restore air traffic in Chicago area in coming days
September 26, 2014 at 18:38 PM EDT
WASHINGTON, Sept 26 (Reuters) - The fire set by an employee of Harris Corp at a Chicago-area air traffic control center on Friday may have caused significant damage, but the Federal Aviation Administration (FAA) hopes to restore air traffic to relatively normal levels over the next few days, U.S. government officials said.