As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DEPARTING FROM DAL, F/A REPORTED OILY ODOR IN CABIN WHICH PERSISTED FOR 10 TO 15 MINUTES. ON SHUT DOWN AT MCI OBSERVED EXCESSIVE SMOKE FROM TAILPIPE WHICH PERSISTED FOR SEVERAL MINUTES AFTER SHUTDOWN AT GATE. REMOVED AND REPLACED NR 2 ENGINE PER MM.