As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - CREW REPORTED RIGHT HYDRAULIC SYSTEM LOSS. CREW WAS ABLE TO EXTEND THE LANDING GEAR BUT WAS UNABLE TO RETRACT MAIN GEAR DOORS. EMERGENCY DECLARED FLIGHT LANDED ORD WITHOUT INCIDENT. FOUND DAMAGED HYDRAULIC LINE TO THE RIGHT RESERVOIR CAUSING FLUID LOSS. REPLACED DAMAGED LINE AND SERVICED SYSTEM. PRECAUTIONARY MAINTENANCE REPLACING RIGHT ENGINE DRIVEN PUMP AND FILTERS. SYSTEM GROUND CHECK NORMAL OPERATION.