As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEAD FA ATTENDANT REPORTED FUME ODOR ON FINAL DESCENT. NO ODOR WAS NOTED IN THE COCKPIT. PACKS WERE TURNED OFF, BACK ON ALTERNATING NO ODORS WERE NOTED. NO APU BLEED WAS USED.-FOLLOW TSM 05-50-00-810-831-A SOURCE TYPE 2 FOUND ENG OVERSERVICED, DRAIN TO PROPER LEVEL AS PER AMM 79-00-00 IDLE RUN ENG IAW AMM 71-00-00. TEST OK NO SMELL NOTED.