Incident Description: On 12 Apr.14,at 1411 hrs. IE Technician was troubleshooting the steam rice cooker in BELQ Galley. When he switched on the breaker, a cook observed electrical spark with minor flame on magnetic contactor of steam rice cooker , he then immediately informed IE tech who was standing by at the breaker to switch off. After isolating electrical power, the fire ceased. IE Technician inspected the incident area and observed no potential of fire re-ignition then informed Supervisor.