What was found
*** INITIAL NOTIFICATION*** WHILE EN-ROUTE AT CRUISE ALTITUDE, THE FLIGHT CREW EXPERIENCED A RAPIDLY DROPPING R HYDRAULIC QUANTITY WITH ASSOCIATED HYDRAULIC TEMP INCREASING. THE CREW RAN THE APPROPRIATE CHECK LIST AND THE DECISION WAS MADE TO DIVERT INTO THE NEAREST AIRFIELD. THE AIRCRAFT LANDED WITH NO FURTHER ISSUES. THE AIRCRAFT IS CURRENTLY UNDERGOING MAINTENANCE AND A SUPPLEMENTAL SDR WILL BE SUBMITTED UPON COMPLETION OF THE CORRECTIVE ACTION.