As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL - CREW REPORTED HIGH LEFT ENGINE EXHAUST GAS TEMPERATURE. EMERGENCY DECLARED FLIGHT RETURNED STL LANDED WITHOUT INCIDENT. UPON LANDING RECEIVED NUMBER ONE ENGINE FIRE WARNING AND BOTH FIRE BOTTLES WERE DISCHARGED. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT ENGINE ON 06/05/2011 AT STL. REPLACED BOTH FIRE BOTTLES. SYSTEM GROUND CHECK NORMAL OPERATION.