What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO SLC DUE TO THE FLIGHT CREW REPORTING THAT DURING CLIMB, A STRONG ELECTRICAL SMELL STARTED IN THE FORWARD GALLEY. THE FLOOR NEXT TO THE R1 DOOR WAS HOT, AND THE VINYL BEGAN TO MELT. THE AIRCRAFT LAND SAFELY AT SLC AND UPON LANDING, ARFF FOUND A HEAT SIGNATURE UNDER THE DOOR FROM OUTSIDE. ON RETURN TO THE GATE, THEY FOUND THE FLOOR AREA NEAR THE MELTED MATERIAL TO STILL BE OVER 100 DEGREES. MAINTENANCE FOUND THE HEATED FLOOR PANEL 30DS WARPED WITH EVIDENCE OF HEAT DAME TO THE LOWER SURFACE AND REPLACED THE FLOOR PANEL PER AMM 25-27-51. A SATISFACTORY BITE CHECK AND OPERATIONAL CHECK OF THE FLOOR HEATING SYSTEM WAS ACCOMPLISHED WITH NO ISSUES NOTED.