As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT HYDRAULIC "HOT" OAP LIGHT ON, THEN ZERO HYDRAULIC PRESSURE BOTH SYS. ACCOMPLISHED QRH PROCEDURES FOR TOTAL HYDRAULIC FAILURE. ON BASE LEG AT 3000' AGL BOTH HYDRAULIC SYSTEMS CAME BACK TO NORMAL. ACCOMPLISHED NORMAL LANDING. FOUND RT HYD SYSTEM WITH EXCESSIVE AIR. BLED BOTH SYSTEMS AND RAN ALL HYD COMPONENTS WITH ENGINES RUNNING AND ELECTRIC PUMP. NO PROBLEMS NOTED.