As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OKC - INFLIGHT FAT-DFW. CREW REPORTED A RIGHT HYDRAULIC SYSTEM LOSS. EMERGENCY DECLARED, LANDED OKC WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. INSPECTED AIRCRAFT FOR POSSIBLE LEAKS, NO INDICATION OF LEAK. BLED AIR FROM LEFT AND RIGHT RESERVOIRS AND SERVICED LEFT AND RIGHT HYDRAULICS. SYSTEM GROUND CHECK NORMAL OPERATION.