What was found
FAINT INTERMITTENT ELECTRICAL ODOR AROUND ROW 31ABC LOCKING . FLIGHT ATTENDANTS REPORTED FAINT ELECTRICAL SMELL 3 HOURS INTO FLIGHT WHICH LAST APPROX 1 MINUTE BEFORE IT DISSIPATED AND REMAINED ODOR FREE FOR THE REMAINDER OF THE FLIGHT SMOKE OR FUMES IN THE CABIN CONDITIONAL PERFORMED REF AMM 05-51-99-99A-282A-A WITH NO DEFECTS NOTED AFTER INSPECTION OF SEATS, IFE, PSUS, CEILING PANELS, DIMMABLE WINDOWS, LAVATORIES, LIGHTING UNITS. APU RAN WITH PACKS AND RECIRCULATION FANS ON AND UNABLE TO DUPLICATE FAULT WITH REFERENCE TO FIM 21-20-F5-72A-421A. UNABLE TO DUPLICATE FAULT, NO ODOR PRESENT IN CABIN SURROUNDING 31ABC. AIRCRAFT OKAY FOR CONTINUED SERVICE