As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THE RIGHT HYDRAULIC PRESSURE LOW AND THE RUDDER CONTROL MANUAL LIGHT ILLUMINATED IN FLIGHT. CREW RAN THE EMERGENCY GEAR EXTENSION CHECKLIST TO GET THREE GREEN LIGHTS. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED RIGHT ENGINE HYDRAULIC ENGINE DRIVEN PUMP AND FILTERS. SYSTEM GROUND CHECKED NORMAL OPERATION.