An engine cover has fallen off a Spirit Airlines jet, forcing the aircraft to return to a Chicago airport shortly after taking off.
The airline says Flight 409 bound for Fort Lauderdale, Fla., landed safely at Chicago's O'Hare International Airport Saturday morning. No one was injured.
Spokeswoman Misty Pinson says the flight crew received an indication of a possible mechanical problem, declared an emergency and returned to Chicago.
Passengers were put on another aircraft.
The right engine housing, known as cowling, was recovered on airport property. It and the aircraft were being inspected.
The airline is investigating the incident and had no immediate information on a possible cause.