As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING INSPECTION WE NOTICED FUEL STAINING ON INTAKE PIPES. CLOSER INVESTIGATION WE FOUND INTAKE PORT CRACKED. FOUND 4 OUT OF 12 CYLINDERS SHOWING SIGNS OF CRACKING IN SAME AREA. ALL CYLINDERS ARE STAMPED "F" ON UPPER ROCKER COVER FLANGE. REST OF CRACKED CYLINDER`S SN ARE 49095-28, 48916-17, 49149-30. ALL 12 CYLINDERS WERE REPLACED.