As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THE RIGHT ENGINE CHT & EGT DROPPED RAPIDLY, ALONG WITH FUEL PRESSURE, AS WELL AS AIRCRAFT YAW AND ENGINE ROUGHNESS. MAINTENANCE INSPECTED AND FOUND THE RIGHT ENGINE #3 CYLINDER INTAKE VALVE FAILED, AND THE VALVE STEM BECAME LODGED IN THE CYLINDER HEAD. THE ENGINE WAS REPLACED WITH NO FURTHER DEFECTS NOTED.