As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL 190 NOTICED QUANTITY DROPPING ( INDICATOR IN REVERSE ) WE MONITORED CLOSELY BUT ALL OTHER INDICATIONS NORMAL. IN DESCENT ; OIL QUANTITY WENT TO ZERO; THEN OIL PRESSURE FLUCTUATED THEN DROPPED CAUSING AMBER THEN RED BOX TO FLASH WE DID A PRECAUTIONARY SHUT DOWN PER THE QRH. NO EGT OR OIL TEMP EXCEEDANCE. ALSO DID NOT NOTICE LOW OIL PRESSURE LIGHT OR MASTER CAUTION LIGHT. (#2 ENGINE)<[01] R&R #2 ENGINE; SEE TTG8Q008TSZX FOR CORRECTIVE ACTION.