As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE DAMAGE WAS CAUSED BY FOD THROUGH RAM AIR INLET WHICH CAUSED SUPERCHARGER IMBALANCE WHICH CAUSED LEANING OF NR 6 CYLINDER ALONG WITH SUPERCHARGE BEING THROWN OUT OF BALANCE CAUSED BEARING TO SPIN AND BREAK OFF. SUBMITTER STATED TO PREVENT THIS, PRE-FLIGHT INSPECTION OF RAM AIR INLET AT EACH FLIGHT.