What was found
HYD RESERVOIR OVERHEAT DISPLAYED ON UPPER ECAM SCREEN. EMERGENCY DECLARED. REPLACED LOW PRESSURE FILTER MODULE, REPLACED HIGH PRESS FILTER MODULE. REPLACED THE GREEN SYS CHECK VALVE. REPLACED LANDING GEAR DOOR SELECTOR VALVE IAW AMM32-31-34, AMM 29-11-44, AND AMM 29-11-45. RAN NR 1 ENGINE AND OPERATED HYD SYSTEM, COULD NOT DUPLICATE THE OVERHEAT TRIP IAW TSM 29-11-00-810-802A.