As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - SHUT DOWN LEFT ENGINE INFLIGHT DUE TO FUEL HEAT VALVE REMAINED OPEN. OIL TEMPERATURE IN CAUTION RANGE. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED FUEL HEAT VALVE AND REPLACED MAIN OIL FILTER. NO CONTAMINATION FOUND. SYSTEM GROUND CHECKED NORMAL OPERATION.