As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABOUT 15-20 MINS AFTER LEVEL OFF AT 350FL WE NOTICED THAT THE GREEN HYD LEVEL WAS LOW. 10 MINS LATER WE GOT A GREEN LOW FLUID LEVEL ON THE ECAM. FOLLOWED PROCEDURES AND SECURED THE GREEN SYSTEM. DURING THE REST OF THE FLIGHT WE RECIEVED MANY GREEN LOW LEVEL ECAM ALERTS. HAND CRANKED THE LANDING GEAR DOWN. AFTER LANDING THE GREEN SYSTEM SHOWED NORMAL FLUID LEVELS. COMPLETED SWAPOVERS AND INSTALL OF THE GREEN SYSTEM HP MANIFOLD PER AMM 29-11-12-04. OPS CHECK AND LEAK CHECK GOOD.