As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE DISPLAYED GRADUAL OIL LOSS TO AN INDICATION OF 1 QT JUST BEFORE DESCENT TO KIX. OIL PRESSURE BEGAN TO FLUCTUATE A LITTLE AND DURING DESCENT AN ALERT "OIL PRESS LO" DISPLAYED. PRECAUTIONARY SHUTDOWN PER QRH. NR 2 OIL PRESSURE WAS AROUND 35 PSI WITH 1 AND 3 ABOUT 50 PSI. IN IDLE DESCENT PRESSURE WAS SOMEWHERE BELOW 30 PSI WHEN "LO PRESS" ALERT CAME ON.