As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED FLIGHT DUE TO LOSS OF NR 1 ENGINE. LEFT ENGINE FAILED INFLT FL330 N2 ZERO OIL PRESSURE. ENGINE WINDMILLING INSPECTION. CREW REPORTED ENGINE WINDMILLED FOR 40 MINS WITH ZERO OIL QTY INDICATED. CONDUCTED OIL FILTER AND MAG PLUGS INSP AND NO CONTAMINATION WAS FOUND. FILTER REPLACED. REPLACED EEC ALTERNATOR AND STATOR. ROOT CAUSE ATTRIBUTED TO A FAILED ROTOR.