What was found
IN CRUISE FLIGHT, LOST GREEN HYD SYS QTY. RECEIVED THE FOLLOWING ECAM, HYD G RESERVOIR LO LVL, FOLLOWED ECAM, AOM & QRH PROCEDURES, INCLUDING ALTERNATE LANDING GEAR EXTENSION IAW LOG PAGE 500385. LEAKING HYD LINE REPLACED ON LT ENG GREEN SYS HYD PRESS SWITCH. SYS SERVICED IAW AMM 12-12-29, SYS BLED IAW AMM 29-00-00-870. SYS LEAK CHECKED IAW DRY MOTOR 71-00-00-710, LEAK CHECKED GOOD.