As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED RH ENGINE OIL PRESSURE IN YELLOW LOWEST OBSERVED WAS 42 PSI @ 183 DEGREES. MAINTENANCE INSPECTED AND FOUND METAL PARTICLES IN OIL FILTER, PROP GOVERNOR FILTER SCREEN, WASTEGATE SOLENOID SCREEN AND SUCTION FILTER AT OIL SUMP. FOUND PISTON #4 LH ENG DAMAGED AND OIL REGULATION RING DAMAGED. THE ENGINE IS BEING REPLACED.