The device was tested for explosive material, with negative result. However, all the passengers and luggage on the Chicago-bound flight were taken off the flight as police searched their belongings and the plane for other possible explosives. Passengers were taxied to an isolation area “For the safety of travelers within the Preclearance Facility (PCF), CBP stopped all traveler processing while the mock IED was tested,” the airport said. US Customs and Border Protection was conducted investigation. The American man, Joseph Galaska ,58, was arrested and charged with mischief. I will appear in court in Brampton, Ontario, on Friday. Airport officials said the security breach had no impact on other airport operations. United Airlines promised to compensate the passengers for the day’s ordeal.