As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - ON FLIGHT NUMBER 2317, PITCH TRIM CAUTION LIGHT ILLUMINATED ON SHORT FINAL. NO OTHER CAUTION LIGHTS ILLUMINATED. PITCH TRIM INDICATED FULL NOSE UP. RAN CHECKLIST AFTER LANDING. PITCH TRIM DID NOT MOVE. REMOVED AND REPLACED PITCH TRIM ACTUATOR. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.