As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RUDDER PRESSURE AND RUDDER FULL PRESSURE CAUTION LIGHT'S ILLUMINATED AFTER TAKEOFF. QUANTITY’S AND PRESSURE WERE NORMAL. RUDDER PRESSURE WENT OUT BELOW 140 KNOTS, RUDDER FULL PRESSURE WENT OUT AT 120 KNOTS. REMOVED AND REPLACED RUDDER DUAL PRESSURE REGULATOR IAW 27-20-38, OPS CHECK GOOD OK FOR SERVICE.