What was found
FLIGHT ATTENDANT REPORTED BURNING PLASTIC SMELL IN FLIGHT. COFFEE MAKERS WERE THEN TURNED OFF AND SMELL DISSIPATED. WHILE ON GROUND SMELL WAS PRESENT AGAIN INTERMITTENTLY. (FLIGHT #3118 FILED CLOSED) PERFORMED VISUAL INSPECTION OF FWD GALLEY/CABIN AREA, INSPECTED CEILING PANELS, LIGHTS AND BALLASTS AS REQUIRED. NO EVIDENCE OF OVERHEATING FOUND. COULD NOT DUPLICATE SMELL. AIRCRAFT CLEARED FOR DISPATCH.