What was found
LOST GREEN SYS HYD ON TAKEOFF AT GEAR RETRACTION. BOTH GREEN SYS PUMPS WERE TURNED OFF IN LESS THAN 3 MINUTES AFTER ECAM DIRECTED. PERFORMED LEAK AND OPS CHECK OF BLUE/GREEN HYD SYS PTU IAW AMM 29-22-11-04. NO DEFECTS NOTED. AFTER FURTHER TROUBLESHOOTING FOUND NR 1 ENGINE HYD CASE RETURN LINES BETWEEN THE BLUE AND GREEN EDP'S AND FILTER BLOCK TO BE SWAPPED. REROUTED LINES AS PER 71-00-02 FIG 02B DETAIL A. PERFORMED NR 1 ENGINE GROUND IDLE RUN IAW JRH FOR OVER 10 MIN WITH NO FLUID TRANSFER NOTED. LEAK CHECK OF LINES GOOD. SERVICED GREEN AND BLUE HYD SYS IAW MM 12-12-29-00-0. OK FOR SERVICE.