What was found
AFTER APPROX. 1HR IN FLIGHT, RECEIVED CHECK HYD QUANTITY AMBER MESSAGE. PILOTS NOTICED COMBINED HYDRAULIC QUANTITY APPROACHING THE LOW LEVEL AND CONTINUING TO DROP, AIRCRAFT THEN DIVERTED INTO KALN. EMERGENCY LANDING WAS DECLARED AND AIRCRAFT LANDED WITHOUT INCIDENT. ONCE AIRCRAFT ON GROUND, PILOTS AND MECHANICS NOTICED HYDRAULIC FLUID ON THE LH MLG. AFTER TROUBLESHOOTING, FOUND LH MLG SIDE BRACE ACTUATOR TO BE AT FAULT, LEAKING FLUID.