What was found
FLT # 803, JFK-SJU. ON DESCENT THROUGH 10,000 FT FA REPORTED ODOR/FUMES. SMELLED FUMES IN COKPIT AT 10,000 - 6,000 FT ; PERFORMED ECS DECONTAMINATION. REPLACED OZONE FILTER AND RECIRC FILTERS ON LOG 3121903 + 3121904. NO ODRO PRESENT AT THIS TIME. OK FOR CONTINUE SERVICE.