What was found
AFTER ARRIVING TO GATE, AFT FA.S REPORTED MUSTY ODOR FROM TOP OF DESCENT TO LANDING. FUME EVENT-PERFORMED TSM 05-50-00-810-831, CABIN ODOR . INSPECTED APU AREA , BOTH ENGINES NO DEFECT NOTED. RUN PACK1 AND PACK2 IAW AMM 21-61-00, COULDN'T DUPLICATE OROR SYTEM . INSPECTED ANY EVIDENT HYDRAULIC LEAK NO LEAKED NOTED. A/C OK FOR CONTINUED SVC.