What was found
SHIP 9567 -HYD/DE- THE FLIGHT CREW NOTICED A LOSS OF HYDRAULIC FLUID INDICATION WITH THE LEFT SYSTEM. THE QRH WAS COMPLIED WITH AND THE LEFT ENGINE DRIVEN HYDRAULIC PUMP WAS SHUTDOWN. AN EMERGENCY WAS DECLARED DUE TO THE LOSS OF THE LEFT SYSTEM HYDRAULICS WHILE ON APPROACH. THE LANDING WAS UNEVENTFUL. CORRECTIVE ACTION: MAINTENANCE REPLACED THE LEFT ENGINE DRIVEN HYDRAULIC PUMP, THE LEFT CASE DRAIN, PRESSURE, AND RETURN FILTERS. ALSO REPLACED THE LEFT INBOARD SPOILER ACTUATOR STRAINER PACKING. THE AIRCRAFT WAS RETURNED TO SERVICE. (LP #9415054)