As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 100-HOUR INSPECTION, FOUR CYLINDERS SHOWED LOW COMPRESSION. UPON REMOVAL OF CYLINDERS, NOTED THE NR 5 CYLINDER EXHAUST CAM FOLLOWER WAS SPALLED BAD. INSPECTION OF CAM LOBE DID NOT APPEAR NEARLY AS BAD AS CAM FOLLOWER. CAMSHAFT AND CAM FOLLOWERS WERE REPLACED AT THIS TIME. ENGINE HAD 481.0 HOURS SMOH. CAMSHAFT AND CAM FOLLOWERS HAD 481.0 HOURS SINCE NEW. SUPERIOR PMA PART.