As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TUL - INFLIGHT DFW-STL. CREW REPORTED LEFT ENGINE OIL PRESSURE LOSS IN FLIGHT. EMERGENCY DECLARED FLIGHT DIVERTED TUL LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT ENGINE AT TUL ON 05/26/2012. SYSTEM GROUND CHECK NORMAL OPERATION.