What was found
FLIGHT 6267 - SBN-CVG - DESCENDING 10000FT, OBSERVED HYD 1 LOW QTY EICAS MESSAGE. RAN QRH AND OBSERVED A DECREASE IN HYDRAULIC FLUID FOLLOWED BY A DECREASE IN HYDRAULIC PRESSURE. OBSERVED A COMPLETE LOSS OF ENGINE DRIVEN HYDRAULIC PRESSURE, ELECTRIC PUMP ON, AND A SLOW LOSS OF ELECTRIC HYDRAULIC PRESSURE. RAN QRH FOR E1 HYD PUMP FAIL EICAS MESSAGE AND DECLARED AN EMERGENCY. LANDED WITHOUT INCIDENT. MAINTENANCE FOUND A LEAK ON THE NOSE LANDING GEAR DOOR ACTUATOR LEFT FITTING. REMOVED AND REPLACED THE FITTING O-RING IAW EMB MM 32-33-05.