As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 590 - MCI - EMERGENCY DECLARED, NR 1 ENGINE INFLIGHT SHUTDOWN. LANDING UNEVENTFUL. SHUTDOWN NR 1 ENGINE DUE TO HIGH OIL TEMP. FOUND LOOSE PIN IN FUEL HEAT VALVE CONNECTOR. RESET PIN, CLEANED CONNECTOR. VALVE OPS CHECKED OK. RAN ENGINE, CYCLED FUEL HEAT VALVE, VERIFIED OIL TEMP RISE, CYCLED VALVE TO OFF POSITION OIL TEMP NORMAL. (M)