As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 RUDDER HYD, RUDDER PRESSURE AND RUDDER FULL PRESSURE LIGHT CAME ON IN FLIGHT. STAYED ON DURING THE DURATION OF FLIGHT. CREW DEPRESSED NR 1 RUDDER PUSH OFF SWITCH ON GROUND WITH APU POWER ONLY AND RUDDER PRESSURE CAUTION LIGHT REMAINED ON. R & R RUDDER DUEL PRESSURE REGULATOR. OPS AND LEAKED CHECKED GOOD.