Mike Schroeder says he was flying from Chicago to Orange County, California, late Sunday when he heard a hiss and pop. He says he turned around and saw the plane's emergency evacuation slide inflating inside the plane.
Schroeder says the pilot announced to passengers that they would be landing at Wichita's Mid-Continent Airport. He says passengers remained calm and took pictures of the inflated slide with their phones.
Schroder says that after landing the pilot looked at the slide and said he had never seen that happen before.
United Airlines representatives did not immediately respond to messages seeking comment early Monday.