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 CLT . DURING FLIGHT ECAM WARNING BLUE HYDRAULIC SYSTEM LOSS, RESERVOIR SHOWS EMPTY. THE AIRCRAFT LANDED SAFELY AT CLT WITHOUT FURTHER INCIDENT. DIVERTED TO CLT. MAINTENANCE FOUND O-RING ON BLUE SYSTEM ELECTRIC PUMP PRESSURE SWITCH DAMAGED AND REPLACED IT PER AMM 29-12-17-400-001-A. A SATISFACTORY LEAK CHECK WAS ACCOMPLISHED.