As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TAKEOFF OF FLIGHT 3410 CREW HEARD A LOUD BAND FROM NR 3 ENGINE AND REPORTED THE NR 3 ENGINE FROZE UP, NO OTHER PARAMETER INDICATIONS WERE IDENTIFIED. CONTINUED TO DTW AND DECLARED EMERGENCY AND LANDED WITH NO PROBLEMS. COMPLETED TASK CARD THREE ENGINE FERRY. MAINTENANCE REMOVED AND REPLACED NR 3 ENGINE ASSEMBLY P/N LF507-1F, S/N ON P07768, S/N OFF P07770.