As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION FOUND CRACKS AROUND THE BOLTS IN THE SWIRL PLATE EXTENDING TO THE FOURTH ROW OF HOLES. ONE OF WHICH HAD TWO CRACKS INTERSECTING WITH EACH OTHER. THIS COULD HAVE POSSIBLY LED TO THAT PIECE COMING LOOSE AND FINDING ITS WAY THROUGH THE REST OF THE ENGINE. REMOVED MO2 AND MO3 AND INSTALLED SERVICEABLE MODULES.