As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUME EVENT ON FINAL APPROACH. F/A'S NOTIFIED US ON THE GROUND. CLOSING THE X-BLEED VALVE AND TURNING PACK 2 OFF HELPED. THEY SAID THE SMELL WAS AFT CABIN. PERFORMED IDENTIFICATION OF CABIN ODOR IAW TSM 05-50-00-810-831 PERFORMED ENGINE RUNS IAW AMM 71-00-00. NO ODORS NOTED. ACFT OK FOR CONTINUE SERVICE.