What was found
IAH - FLT 1809 - WHITE SMOKE WITH BURNING ELECTRICAL SMELL ENTERED THE COCKPIT ON APPROACH TO IAH. THE SMOKE AND SMELL DISSIPATED AFTER TURNING OFF THE GALLEY POWER AND PULLING ALL CIRCUIT BREAKERS IN GALLEY. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND CANNON PLUG ON RT COFFEEMAKER BURNED. THE CONNECTOR PLUG WAS REPLACED. OPERATION OF BOTH THE RT AND LT COFFEEMAKERS CHECKED GOOD. (X)