As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND NUMBER TWO AND NUMBER FOUR CYLINDERS CRACKED, FAILED COMPRESSION CHECKS, DURING 100 HOUR INSPECTION. CYLINDER TIME SINCE NEW 792.0 HOURS. ENGINE TIME SINCE MAJOR OVERHAUL 792.0 HOURS. NUMBER ONE CYLINDER PREVIOUSLY CHANGED DUE TO CRACK AT 600 HOURS TIME SINCE NEW. ENGINE PREVIOUSLY OVERHAULED BY FAA APPROVED REPAIR STATION IN MARCH 2014. FOUR NEW NITRIDE CYLINDERS WERE INSTALLED DURING OVERHAUL.