As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE JUST CAME BACK FROM LYCOMING FOR SB553 AND WAS BOLTED ON AIRFRAME. FOUND THE RT REAR LIFTING RING CRACKED 85 PERCENT THROUGH. CRACK HAD GRAY PAINT IN IT. THIS COULD HAVE BROKEN WITH THE ENGINE UP IN THE AIR AND FULL ON SOMEONE OR THE AIRCRAFT.