What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO DFW DUE TO A GREEN HYDRAULIC SYSTEM OVERHEAT ECAM WARNING INFLIGHT. EVENT OCCURRED APPROXIMATELY 30 MINUTES AFTER TAKEOFF. SYSTEM COOLED OFF AFTER 15 MINUTES WITH GREEN PUMP OFF. THE AIRCRAFT LANDES SAFELY AT DFW WITHOUT FURTHER INCIDENT. MAINTENANCE ACCOMPLISHED TSM 29-11-00-810 AND FOUND THE LEFT ENGINE HYDRAULIC PUMP INOPERATIVE. REPLACED HYDRAULIC PUMP PER AMM 29-11-51 AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK.