What was found
PDIS 721 29-02 1252 06OCT21 MEM OPEN U GREEN SYSTEM HAD HYD LOW PRESSURE. COMPLIED WITH QRH. INFO 06OCT21 04:43 MC1 R LOST GREEN HYD SYSTEM QUANTITY DOWN TO BOTTOM OF YELLOW BAND. FOLLOWED BY LOSS OF SYSTEM PRESSURE. COMPLIED WITH QRH. MANUAL GEAR EXTENSION WAS USED. SHGN 06OCT21 05:18 MEM U PER CREW DEBRIEF, GREEN SYS LOW QTY AFTER LEVEL OFF, SYSTEM QTY CAME BACK UP AFTER GEAR EXTENSION. RESERVOIR CURRENTLY SHOWING 3 GALLONS ON GAUGE. FOUND EXCESSIVE FLUID IN GEARWELL AND ON DOORS. SUSPECT LEAK IN SAME AREA. FACT 06OCT21 16:25 MEM REMOVED AND REPLACED MLG DOOR ACT CYLINDER IN REF TO A300-600 AMM 32-31-35- 04. PERFORMED OPS AND LEAKS CHECKS. ALL CHECKS GOOD. A/C OK FOR SERVICE.