As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT, THE CREW RECEIVED RUDDER 1 AND 2 INOPERATIVE MESSAGES. THE MESSAGES PERSISTED AFTER FOLLOWING THE QRH, THEREFORE THE CREW RETURNED TO THE FIELD OF DEPARTURE FOR AN UNEVENTFUL UNSCHEDULED LANDING. MAINTENANCE TROUBLESHOT THE MESSAGES TO AND REPLACED THE RUDDER SYSTEM 1 AND 2 PRESSURE SWITCHES IAW FIM 27-22-00-810-804A AND AMM 27-23-04. ALL LEAK AND OPS CHECKS WERE GOOD AND NO FURTHER DEFECTS HAVE BEEN NOTED.