Airport spokesman Jonathan Dean says the incident Friday afternoon occurred in a lower-level airline space. He says the partial evacuation has had only had a minor effect on airline operations.
Dean said the item was found not to be hazardous and passengers were allowed back in the area.
Tamara Sisk of San Francisco was on a flight that arrived from Salt Lake City but wasn't initially able to go to a gate. Sisk said the plane eventually was allowed to arrive at a gate, and passengers got off about 4:30 p.m.