As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - RIGHT HYDRAULIC QUANTITY WENT TO ZERO. EMERGENCY DECLARED, RETURNED DFW WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT HYDRAULIC QUANTITY TRANSMITTER. SERVICED RIGHT HYDRAULIC QUANTITY TO FULL. SYSTEM GROUND CHECK NORMAL OPERATION.