As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED ENGINE VIBRATION DURING DESCENT. SUBSEQUENT TROUBLESHOOTING ON THE GROUND CONFIRMED THE VIBRATION ON DURING ENGINE DECELERATION. FOD DAMAGE WAS DISCOVERED IN THE ENGINE CORE AND HOT SECTION. THE ENGINE WAS REPAIRED AND THE AIRCRAFT RETURNED TO SERVICE.