As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDED UNDER EMERGENCY CONDITIONS DUE TO REPORTED SMOKE IN THE CABIN. SLIDE RAFTS DEPLOYED AND AIRCRAFT EVACUATED ONCE CLEAR OF ACTIVE. NR 2 ENGINE REPLACED AT ORD DUE TO HEAVY METAL DEPOSITS ON MAGNETIC CHIP DETECTORS. TEARDOWN REVEALED A FAILURE OF NR 2 BEARING. BEARING FAILURE CAUSED LARGE CHIPS OF CARBON TO BE LIBERATED FROM NR 2 FRONT CARBON SEAL, ALLOWING OIL TO LEAK INTO THE HP COMPRESSOR. THIS WAS THE SOURCE OF THE CABIN SMOKE.