What was found
AFTER TAKE OFF, AND GEAR RETRACTION, RECEIVED AN ECAM MESSAGE FOR G HYD SYS LO PRESSURE, FOLLOWED BY A G HYD LO RESV. AN EMERGENCY WAS DECLARED, RETURNED TO DEPARTURE, AND AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS GROUNDED. FOUND RIGHT MAIN LANDING GEAR SWIVEL HOSE FOR LOCK STAY ACTUATOR FAILED. REPLACED THE HOSE IAW AMM 32-11-22-400. OPS AND LEAK CHECKED OK.