What was found
FLIGHT ATTENDANT REPORTED A FUME EVENT THAT LASTED FIVE MINUTES ON DESENT. EVENT WAS PRIMARLLY IN THE AFT GALLEY AREA. NO FUMES WERE EXPERIENCED IN THE FLIGHT DECK. ACCOMPLISHED SMOKE ODOR FUMES INITIAL TROUBLESHOOTING. CLEANED ALL COFFEE MAKERS AND OPS CHECKED GOOD. CLEANED AFT EXTRACTION FILTERS. ADDED OIL TO APU. OPERATED APU BLEED SYSTEM INDEPENDENTLY. THEN BOTH PACKS INDIVIDUALLY. NO ODER NOTED AT THIS TIME.