What was found
AT 39FL, F/A REPORTED HOT ELECTRICAL ODOR IN THE CABIN AROUND ROWS 20-30 IAW QRH UTILITY BUSSES, LT RECIRCULATION FAN TURNED OFF. ODOR DISSIPATED WITH CONCURRENCE OF MX. PERFORMED INSPECTION OF SEBS FOR OBVIOUS SMOKE EMITTERS IN ROWS 20-40. INSPECTED SIDEWALL OVERHEAD LIGHTS, READING LIGHTS, E/E AND BOTH CARGO BINS. NO ODOR DETECTED. ELECTRICAL ODOR BURN WITH IFE ON BOTH UTILITY BUSSES DROPPED OFF. RECONNECTED AND NTF. THE LT RECIRCULATION FAN WAS REPLACED DUE TO ODOR.