As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, CREW REPORTED HEARING FOUR (4) LOUD "BANGS" FROM THE NR 2 ENGINE FOLLOWED BY LOSS OF POWER FROM THAT ENGINE AND SMOKE IN THE CABIN. ENGINE REGAINED POWER BUT IT WAS ACCOMPANIED BY A VIBRATION IN THE YOKE AND RUDDER PEDALS. ACFT LANDED SAFELY. MX DISCOVERED METAL DEBRIS IN THE ENGINE. THE ENGINE WAS REMOVED AND REPLACED.