Minutes before a Southwest Airlines plane was to take off Sunday, the co-pilot was taken off and arrested by the FBI on suspicion of being intoxicated. A Transportation Security Agency screener at Salt Lake City International Airport reported to supervisors that the man's breath smelled of alcohol when he went through a security screening line, FBI spokesman Patrick Kiernan said. Airport police removed him from the aircraft, Kiernan said. The Boeing 737 was scheduled to depart Salt Lake City International Airport with 123 passengers at 8 a.m., traveling first to Phoenix and then to Albuquerque, N.M. It departed 15 minutes late, after the co-pilot was replaced. Police administered a breathalyzer test, but the results were not being released Sunday, Kiernan said.