As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE OIL QUANITY STEADILY DECREASED DURING CRUISE. LOST 2.5 QTS IN 50 MINUTES. SHUTDOWN ENGINE TO PRESERVE OIL QTY. RESTARTED ENGINE AT ALT. FL 240, QTY HELD OK FOR APPROACH AND LANDING. FROM PREVIOUS ENGINE DRIVEN HYD PUMP REMOVAL AND BLOCKOUT FOUND SPLINE LOCKOUT TOOL SEAL DAMAGED. REPLACED SEAL LEAK CHECK GOOD