As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED TO ATL DUE TO THE FLIGHT CREW REPORTING YELLOW HYDRAULIC SYSTEM LOW LEVEL ECAM MESSAGE. THE FLIGHT CREW ACCOMPLISHED ECAM PROCEDURES AND LANDED SAFELY AT ATL WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND HYDRAULIC FLUID LEAKING FROM THE #2 ENGINE AND REPLACED THE ENGINE DRIVEN HYDRAULIC PUMP PER AMM 29-13-51. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.