As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - FLIGHT 2059 - FLIGHT RETURNED TO FIELD. DURING THE CLIMB THE CREW RECEIVED A FULL RUD PRESSURE CAUTION LIGHT. MAINTENANCE FOUND THE NEW SWITCH 7G773 FAILED. THE BAD SWITCH WAS REPLACED AND OPERATIONAL CHECKS WERE PERFORMED. THE OPERATIONAL CHECKS WERE GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.