What was found
FLT#47, LGA-TPA. ' ODOR EVENT STARTED AT 8000' ON ARRIVAL IN COCKPIT. FA CALLED ON APPROACH AND REPORTED MEDIUM SMELL OF OIL/FUEL IN AFT CABIN; ACCOMPLISHED TSM 05-50-00-810-831A "ID OF THE CAUSE OF CABIN ODOR" COMPLIED WITH INFO NOTICE 2017-T015 PERFORMED SATISFACTORY DECONTAMINATION OF BLEED AIR DUCTS/ECS IAW AMM 36-10-00/21-00-00 ACCOMPLISHED ENG RUN WITH BLEED/PACKS SYSTEM ISOLATED. NO ODOR WAS NOTED AFTER DECONTAMINATION OF THE SYSTEM. COMPLIED WITH INFO NOTICE 2017-T015 SECTION B (2) AIRCRAFT IS OK FOR SERVICE.'