As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED LEFT ENGINE EGT, CHT & TIT ABNORMALLY LOW DURING FINE, AND HEAVY BLACK SMOKE FROM LEFT ENGINE DURING FINAL. CREW ALSO NOTED OIL LEAK ON LEFT ENGINE AFTER LANDING. MAINTENANCE INSPECTED AND FOUND THE INTAKE VALVE ON THE LEFT ENGINE NUMBER 3 CYLINDER TO BE DAMAGED. THE CYLINDER IS BEING REPLACED.