What was found
GREEN HYD RSVR LO LEVEL ECAM ON DEPARTURE. QUANTITY WAS AT ORANGE DOT IN YELLOW BAND. COMPLIED WITH ECAM/QRH. CAPTAIN REPORTED THE ALTERNATE GEAR EXTENSION PROCEDURE WAS USED AS DIRECTED BY RED TABS. RESTORE THE GEAR IAW AMM 32-33-00-02-0. REMOVED AND REPLACED 1257 RT NOSE DOOR UPLOCK ASSY IAW AMM 32-33-05 UP TO AND INCLUDING STEP 2 D. (3). COMPLETED INSTALL AND OPS CHECK OF RH NOSE GEAR DOOR UPLOCK ASSY 1257 IAW 32-31-14-04. RIG, LEAK, AND OPS CHECKED OK. LANDING GEAR FREE FALL SYSTEM CHECKED OK IAW AMM 32-33-00-05.