As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS AFTER TAKEOFF HYD G RSVR OVHT ECAM WAS INTERMITTENTLY SOUNDING. ECAM PROCEDURE WAS FOLLOWED. OVHT (AMBER) LIGHT NEAR RESERVOIR ON HYD PAGE WAS ILLUMINATED AND DISAPPEARED AFTER LANDING. MAINTENANCE REPLACED SELECTOR VALVE ASSY 2524GM IAW AMM 32-31-31. LEAK CHECK & FUNCTIONAL TEST GOOD IAW AMM 32-31-00.