As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FLIGHT LEVEL 30K FEET 263 NM OUT OF MAJURO, NR 1 OIL QUANTITY STARTED TO DECREASE FROM 4 GALLONS TO ZERO, CREW THEN SHUT DOWN ENGINE AND DESCENDED TO FL 26K FEET, RETURNED TO MAJURO. WINDMILLING OCCURRED FOR 43 MINUTES WITH OIL PRESSURE AT 17-18 PSI. ON INSPECTION FOUND NR 6 BEARING OIL PRESSURE LINE BROKEN. REPLACED LINE FULL POWER RUN NO LEAK, PERFORM TEST HOP SYSTEM OIL NO LEAK, RELEASED AIRCRAFT FOR SERVICE.