As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE SHUTDOWN DUE FLUCTUATING OIL PRESSURE GAUGE AND LIGHT AND OIL QTY READING ZERO, NOTE OIL TEMP READING NORMAL 75 DEG. REMOVED AND REPLACED ENGINE. FUNCTIONAL TEST COMPLETED AND FOUND SATISFACTORY. ACFT RETURNED TO SERVICE. ENGINE SENT TO REPAIR FACILITY FOR TEARDOWN & INSPECTION. INSPECTIONS RESULTS, UPON QEC REMOVAL IT WAS DETERMINED THAT A FAILURE OF THE CSD DISCONNECT CLUTCH ASSEMBLY WAS THE CAUSE FOR THE COMPLETE OIL LOSS.