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 IAD DUE TO A YELLOW HYDRAULIC SYSTEM ENGINE 2 PUMP LOW PRESSURE ECAM AND THE YELLOW HYDRAULIC SYSTEM QUANITY WENT TO ZERO. THE AIRCRAFT LANDED AT IAD WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE RIGHT ENGINE HYDRAULIC PRESSURE LINE IN THE PYLON LEAKING AND REPLACED IT PER AMM 29-13-49. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.