As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REMOVED NR 1, NR 2, AND NR 4 CYLINDERS DUE TO LEAKAGE PAST RINGS. RINGS TOTALLY WORN OUT. ONE CYLINDER CRACKED. EXCHANGE CYLINDER SUPPLIED. TWO CYLINDERS BURNED TO TIO. NEW PISTONS AND RINGS INSTALLED. NEW INTAKE SEALS. NEW OIL RETURN SLEEVES, 6L M20W50 INSTALLED. NEW OIL FILTER. GROUND RUN OK.