What was found
LHR - FLT 156 - FOUND NR 2 ENGINE HYD GREEN HY PUMP FAILED, AND FLUID IN CAVITY DRAIN. REPLACED GREEN HYD FAILED, AND FLUID IN CAVITY DRAIN. REPLACED GREEN HYD PUMP AS PER MM 29-11-32-4. REPLACED CASE DRAIN FILTER AND INSPECTED GREEN SYSTEM PRESSURE FILTER OK. REPLENISHED HYD SYSTEM 3 GALLONS TOTAL LOSS, AND RESET LANDING GEAR AFTER FREE FALL EXTENSION AS PER MM 32-33-00-2. SYSTEM NOW OPS AND LEAK CHECKS OK. (M)