What was found
ON FLIGHT 2898 THE CREW REPORTED THEY RECEIVED A FLAPS FAIL CAUTION MESSAGE ON EICAS. THE ABNORMAL/NORMAL CHECK LISTS WERE COMPLETED. AN EMERGENCY WAS DECLARED WITH A REQUEST FOR CRASH, FIRE AND RESCUE. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED SERVICEABLE FECU IAW EMB 140 AMM 27-53-02. THE OPERATIONAL CHECK WAS GOOD IAW EMB 140 AMM 27-53-00. THE AIRCRAFT WAS RETURNED TO SERVICE.