As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE STEADY, LOSS OF MAP IN CRUISE WITH CORRESPONDING DECREASE IN OIL PRESSURE. ELECTED TO SHUTDOWN AND SECURE RT ENGINE IN FLIGHT AND MADE AN UNSCHEDULED LANDING. DURING INSPECTION, RT ENGINE TURBOCHARGER FOUND TO BE AT FAULT. REPLACED RT TURBOCHARGER, VISUALLY INSPECTED ENGINE AND COMPONENTS FOR ADDITIONAL DEFECTS, AND GROUND RUN ACFT TO VERIFY ENGINE PRODUCES RATED MAP AND DOES NOT LEAK OIL.