CHICAGO, IL - FEBRUARY 03: An American Airlines plane comes in for a landing at O'Hare International Airport February 3, 2011 in Chicago, Illinois. Commercial carriers at the airport started flying today for the first time since a blizzard forced the grounding of almost all planes Tuesday afternoon. Throughout the city residents continue to dig out from more than 20 inches of snow that fell on the area Tuesday and Wednesday. (Photo by Scott Olson/Getty Images)
Federal investigators are headed to Chicago's O'Hare Airport Wednesday to investigate the increased number of air traffic control errors in the past year.
A report from the Federal Aviation Administration showed the number of errors rose because of new air traffic controllers directing planes, failing to keep the proper distance between aircrafts.
There are 52 veterans training 15 controllers with some experience, the Chicago Tribune reports. More training is being done to field added flights and plan for the retirement of veteran controllers.
O'Hare's errors increased to 17 from six the previous year, according to the Tribune. Two of the errors were considered "serious."
The FAA will look into the safety concerns behind the errors today. The administration says the mistakes reflect a national trend.