As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW DECLARED AN EMERGENCY. CAPTAIN REPORTED A GREEN SYS HYD LOW PRESSURE IN FLIGHT WITH HYD-G RESERVOIR LO LEVEL ECAM MESSAGE. FOUND PILOT VALVE HAD A CRACK AT LANDING GEAR SAFETY VALVE 49GA. R & R VALVE IAW AMM 32-31-00-710. LEAK AND OPS CKS GOOD.