As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT TOP OF CLIMB THE RIGHT ENGINE OIL QUANTITY BEGAN TO DECREASE TO ZERO. OIL PRESSURE EVENTUALLY TURNED AMBER AND THEN BOXED RED. ENGINE SHUT DOWN. RETIRED MECH ON BOARD REPORTED EXCESSIVE OIL WETTING NOTED ON REAR TURBINE FRAME AREA UNDER CORE COWL. MTC ACTION IN PROGRESS. INSPECTED ENG, FOUND OIL SUPPLY TUBE COUPLING NUT LOOSE. TIGHTENED NUT AND SAFETY WIRED PER M/M LEAK CHECK GOOD.