(AP:CHICAGO) A computer problem temporarily disrupted United Airlines flights at O'Hare International Airport on Thursday, causing long delays and lines for travelers headed out for the Fourth of July holiday weekend.
The outage affected all of the United's computers at the airport and also caused some flight cancellations, said airline spokeswoman Robin Urbanski.
The problem started shortly after 5 a.m. and at one point, the airline instituted a "ground stop," keeping United flights bound for O'Hare grounded if they hadn't taken off yet, said Federal Aviation Administration spokeswoman Elizabeth Isham Cory.
She said the glitch affected the boarding pass system and the computers that tell pilots the number of passengers on board and weight of the plane, which affect how much fuel an aircraft can carry.
