As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ECI CYLINDER NR 2 AND NR 6 CRACKED HEAD. NR 6 HAS HOLE BLOWN THROUGH BREAKING COOLING FINS AND BURNED BAFFLE. ROUGHLY 650 HOURS SINCE NEW ECI CYLINDERS INSTALLED ON OVERHAULED ENGINE, 2 OTHER ECI CYLINDERS WERE CHANGED AT 600 HOURS FOR SAME THING.