As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - RUDDER TRIM ACTUATOR ONLY MOVED INTERMITTENTLY DURING CLIMBOUT, BUT SEEMED TO WORK NORMALLY FOR THE REMAINDER OF FLIGHT. C/W OPERATIONAL TEST PER AMM TASK 27-22-00-710-801. NO DEFECTS NOTED. RETURNED TO SERVICE. NO PARTS REPLACED.