As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW INFLIGHT T2473/11MAR - RIGHT HYDRAULIC SYSTEM FLUID LOSS DURING CLIMB. RETURNED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED THE RIGHT HAND WING LATERAL CONTROL SHUT OFF VALVE AND SERVICED HYDRAULIC RESERVOIR. SYSTEM GROUND CHECKED NORMAL OPERATION.