What was found
MAIN HYDRAULICS: IN FLIGHT HYD PRESS LOW R ILLUMINATED. ACCOMPLISHED QRC AND DIVERTED. 10 MINUTES LATER HYD VOLUME LOW ILLUMINATED. QRC COMPLETED. UTILIZED EMERGENCY LANDING GEAR EXTENSION SYSTEM AND EMERGENCY WHEEL BRAKES ON LANDING. DID NOT LAND OVER-WEIGHT. TIRES INTACT UPON SHUTDOWN AND SECURING. HYDRAULIC FLUID NOTED DRIPPING FROM RIGHT ENGINE PYLON. ***CORRECTIVE ACTION*** FOUND RH ENGINE DRIVEN HYD PUMP PRESSURE LINE PN.6957100-18 SHEARED AT FITTING ON PUMP SIDE OF LINE. REMOVED DAMAGED ENGINE DRIVEN HYD PUMP PRESSURE LINE PN.6957100-18, INSTALLED NEW PN.6957100-18 NO SERIAL NUMBER. REMOVED AND REPLACED LEFT AND RIGHT PRESSURE AND RETURN FILTERS, NOTED DEBRIS IN RIGHT FILTER. REMOVED AND REPLACED BOTH ENGINE DRIVEN HYDRAULIC PUMPS AS PRECAUTION AGAINST CONTAMINATION. COMPLIED WITH EMERGENCY GEAR EXTENSION PNEUMATIC BOTTLE SERVICING IAW CE-680A MM CHAPTER 12-10-45 ITEM 2. COMPLIED WITH EMERGENCY BRAKE PNEUMATIC BOTTLE SERVICING IAW CE-680A MM CHAPTER 12-10-45 ITEM 3.