What was found
AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORTED ELECTRICAL SMELL, BURNING SMELL IN THE LAST THREE ROWS OF THE AIRCRAFT ASKED THE PASSENGERS TO UNPLUG ANY DEVICES. THEY HAD PLUGGED INTO THE POWER PORTS, AND THE SMELL SEEMED TO DISSIPATE. MAINTENANCE FOUND THE ELECTRICAL OUTLETS UNDER SEATS 34B AND 34C DISCOLORED AND SLIGHTLY MELTED. REPLACED ELECTRICAL OUTLETS AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 25-21-37.