What was found
FLT 668, PSE-MCO. MAGIC MARKER ODOR SMELL IN FLIGHT DECK AT APPROX 3000FT DURING APPROACH FOR LANDINGS ENGINES WERE AT IDLE THRUST; PER CABIN ODOR REPORT CAPTAIN REPORTED OIL SMELL AND NEW CAR SMELL PER TSM 05-50-00-810-831-A. RAN BOTH ENGINES AND ISOLATED ONE BLEED AT A TIME. NO OIL SMELL AND NO NEW CAR SMELL AND NO MAGIC SMELL AND COMPLIED WITH INFO NOTICE 2017-T015D SECTIONS A. AIRCRAFT IS OK FOR SERVICE.