As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN LEVEL FLIGHT AT 33,000 FT, LT ENG OIL PRESS LIGHT ON. FEW SECONDS RED LIGHT FOLLOWED BY LOSS OF OIL QUANTITY. ENGINE SHUTDOWN. RETURNED TO DEPARTURE POINT AND NORMAL LANDING. ENGINE INSPECTION REVEALED CRACKED OIL PRESS TUBE, PN 7938314-501. ENGINE REPLACED DUE TO EXTENDED WINDMILLING TIME