Southwest Airlines Boeing 737-700 Flight 481 from Las Vegas to Tulsa made an emergency landing at McCarran International Airport.
The flight diverted back after a cargo hold fire-alert alerted the crew. The flight had left at 1:20, and returned at 2:45. Passengers indicated turbulence as they were returning to Las Vegas. The crew did not explain the situation to the passengers until after landing.
136 passengers and four crew were aboard. No one was injured. THe problem was an indication alert error. Passengers were rebooked on alternative flights.