What was found
FLIGHT ATTENDANT REPORTED A STRONG FUEL ODOR ON LEFT SIDE OF CABIN, 4 ROWS AFT OF ROW 14. PERFORMED TSM 05-50-00-810-831-A. COULD NOT DUPLICATE ODOR, ISOLATED ALL ENGINES, APU, AND PACKS. NO ODORS NOTED, AIR QUALITY GOOD ACFT OK FOR SERVICE.