As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION, METAL CONTAMINATION WAS OBSERVED IN THE OIL FILTER. A CHECK WAS MADE OF VALVE LIFT AND IT WAS DETERMINED THAT THE NR 1 AND NR 2 INTAKE LOBES ON THE CAMSHAFT WERE EXCESSIVE. NR 2 CYLINDER WAS REMOVED AND DAMAGE ON THE CAM LOBES AND TAPPET FOLLLOWERS WERE OBSERVED. ENGINE WAS REMOVED FROM SERVICE.