What was found
FLT NR 340 - JAX-ATL - AT CRUISE ALTITUDE, THE RIGHT HYDRUALIC SYSTEM PRESSURE AND QUANTITY WENT TO ZERO. USED MANUAL GEAR EXTENSION AND ABNORMAL CHECK LIST, LANDED NORMALLY. FOUND HOLE CHAFFED IN AUX PUMP HYDRAULIC LINE. REMOVED AND REPLACED THE HYDRAULIC LINE AND SERVICED RIGHT HYDRAULIC SYSTEM TO PROPER LEVEL WITH SKYDROL, OPS CHECK SYSTEM WITH PRESSURE ON.