As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW ELECTED TO RETURN INTO CLT DUE TO RUDDER SYS 1/2 INOPERATIVE MESSAGE ON EICAS FOLLOWED BY AUTO PILOT AND YAW DAMPER FAIL ON EICAS AIRCRAFT RETURNED TO CLT WITH NO FURTHER INCIDENT DISC-YAW DAMPER AND AUTO PILOT FAIL IN FLIGHT, RUDDER SYSTEM 1 INOP INTERMITTENT, RUD SYS 2 INOP INTERMITTENT. REMOVED AND REPLACED RUDDER PRESSURE SWITCH FOR SYS 1 AND 2. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.