What was found
IAH - FLIGHT 2213, THE CREW REPORTED THAT THE AP YAW DAMP, AND RUDDER SYS 1&2 FAILED TWICE DURING FLIGHT. THE CREW PERFORMED QRH BOTH TIMES AND SUCCESSFULLY BROUGHT BACK RUDDER SYS 1&2. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE THE NR 2 RUDDER PRESSURE SWITCH, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.