The call for hearings followed a Tribune report Monday detailing an all-time record for noise complaints involving jets at O'Hare in 2013. Almost 25,000 complaints were filed between January and November — more than for any full year on record since Chicago installed noise-monitoring devices in 1996, officials said. Complaints also sharply increased in November, a month after O'Hare's fourth parallel east-west runway opened. The runway opening triggered an increase in takeoffs and landings east and west of the airport.