As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PUSHRODS SHOW SIGNS OF SCORING AFTER OVERHAUL ON MULTIPLE ROCKER AND PUSHROD MATING SURFACES. THIS INSTANCE THE ENGINE HAS 25 HOURS TSO WITH NEW PUSHRODS AND ROCKERS, AFTER INSPECTING ONE CYLINDER AND EVIDENCES SHOWS SCORING, WE REQUESTED MAINTENANCE PERFORM SA-167A IN ITS ENTIRETY.