As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK INFLIGHT - CREW REPORTED SMOKE IN COCKPIT AND SMOKE ALARMS COULD BE HEARD IN CABIN. RETURNED TO JFK AND LANDED WITHOUT INCIDENT. FOUND OIL IN HIGH PRESSURE COMPRESSOR STAGES 1, 2 AND 3 ON NR 2 ENGINE. REPLACED NR 2 ENGINE ON 12 DEC AT JFK. SYSTEM GROUND CHECKED NORMAL OPERATION.