As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, NR 2 ENGINE OIL QTY STARTED TO SLOWLY DROP TO ZERO. SHUT ENGINE DOWN IAW QRH. LOWEST PRESSURE 36PSI, TEMP 110 DEG. CREW STATED WINDMILL TIME WAS 45 MINS. NR 2 ENGINE LOST OIL QTY. REMOVED AND REPLACED STARTER GEARBOX CARBON RING ASSY. INSTALLED NEW O-RINGS. INSTALLED ORIGINAL START VALVE AND STARTER. LEAK CHECKED WITH BOTH DRY MOTOR, THEN WITH 5 MINUTE IDLE RUN. NO LEAKS NOTED. ACFT OK FOR SERVICE.