As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2104, AFTER PUSHBACK, PRIOR TO TAXI RUDDER FULL PRESSURE CAUTION LIGHT WAS NOTED. MAINTENANCE REPLACED NR 1 SYSTEM RUDDER PRESSURE WARNING SWITCH. PERFORMED FUNCITON TEST OF THE RUDDER CONTROL HYDRAULIC SYSTEM FOR PROPER OPERATION. TEST GOOD. AIRCRAFT RETURNED TO SERVICE.