What was found
FUME ODOR ON DESENT IN AFT CABIN. PERFORMED PROCEEDURE FOR ELIMINATION OF ODOR/FUMES TURNED OFF PACK 2 FUMES DISSIPATED AFTER FIVE MINS.-PER TSM 05-50-00-810-831-A ACCOMPLISHED ENGINE IDLE RUNS TO CONFIRM NO ODORS PRESENT PER AMM 71-00-00. AFTER 20 MINS OF RUNNING ENGINES COULD NOT DUPLICATE SMELL. DURING LOCKOUT OF PACK 2 FOUND BLEED DUCT TO BE LOOSE SEE L/P 2452159-2 FOR PACK 2 DIFFERAL OPS CHECK OF PACK 1 GOOD. NO FAULTS NOTED AT THIS TIME. A/C OK FOR CONTINUED SERVICE.