As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AN OIL CHANGE FLAKES OF METAL WERE FOUND IN THE OIL FILTER. THE TOP SPARK PLUGS WERE REMOVED & CYLINDER NR 3 HAD OIL ON THE TOP SPARK PLUG. THE CYLINDER WAS REMOVED & PLATING WAS FOUND TO BE FLAKING OFF THE TOP PISTON RING. ALL 6 CYLINDERS WERE REMOVED & ALL TOP RINGS HAD PLATING STARTING TO FLAKE OFF TO SOME DEGREE. ALL CYLINDERS, PISTONS & RINGS HAVE BEEN SENT TO THE MANUFACTURE FOR INSPECTION & REPAIR.