As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CYLINDER NR 3 HEAD SEPARATED FROM BARREL. THE OPERATOR HAD PREVIOUSLY INSPECTED AN OIL LEAK ON OR AROUND CYLINDER NR 3. PRESENTATION OF OIL LEAK AND SEPARATION OF HEAD FROM BARREL IS THE SAME AS DESCRIBED IN AD 86-13-04 R3. THIS CYLINDER PN STAMPED ON THE FLANGE IS 658175B SN: AC14HA124, NOT LISTED ON THE PREVIOUSLY MENTIONED AD.