What was found
FUME EVENT. SMELL OF FUEL FUMES AND VISIBLE HAZE AND FUMES IN AFT CABIN. OCCURRED AFTER SWITCH FROM APU TO ENG 2 BLEED. PERFORMED GVI OF APU, ENGINE 1, ENGINE 2 AND PACKS. NO DEFECTS NOTED. RAN BOTH ENGINES AND PERFORMED TYPE 3 INSPECTION PER TSM 05-50-00-810-085A. NO DEFECTS OR ODORS FOUND. AIRCRAFT OK FOR SERVICE.