What was found
EMERGENCY DECLARED. CREW OBSERVED A HYD G RSVR LOW LEVEL ECAM. FOLLOWED THE QRH 10-9, TURNED OFF THE GREEN SYSTEM HYDRAULICS. AIRCRAFT LANDED UNEVENTFULLY AND WAS TOWED TO THE GATE. REPAIRED THE CASE DRAIN HYD LINE ON NR 1 ENGINE PYLON IAW 20-23-11. PERFORMED GEAR SWING IAW AMM 32-31-00. OPS SATISFACTORY. SERVICED GREEN HYDRAULIC SYSTEM IAW AMM 12-12-00. PERFORMED INSPECTION IAW AMM 05-51-28-200-002-A. CLEANED HYDRAULIC FLUID FROM ALL AFFECTED SURFACES.