As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL - INFLIGHT T1986/12 RIGHT ENGINE OIL QUANTITY DECREASED TO ZERO. RIGHT ENGINE LOW PRESSURE LIGHT ILLUMINATED AND PRESSURE DECREASED TOWARDS ZERO. SHUTDOWN RIGHT ENGINE PER QRH PROCEDURE. ENGINE WINDMILLED NORMALLY FOR 15 MINUTES. LANDED STL WITHOUT INCIDENT. FOUND RIGHT OIL FILTER HOUSING O-RING CUT. REPLACED RIGHT HAND ENGINE. SYSTEM GROUND CHECKED NORMAL OPERATION.