As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2734 THE CREW REPORTED THAT DURING CLIMBOUT RECEIVED A RUDDER OVER BOOST MESSAGE ON EICAS. THE CREW COMPILED WITH THE CHECKLIST AND NO FURTHER PROBLEMS WERE NOTED. THE CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE RUDDER POWER CONTROL UNIT IAW EMB 140 AMM 27-22-03. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.