What was found
AFTER LANDING, THE NR 2 HYDRAULIC LIGHT CAME ON AND THE NR 2 HYDRAULIC PRESSURE WENT TO -0- PSI. INVESTIGATION REVEALED THE NR 2 HYDRAULIC PUMP HAD FAILED. THE PUMP AND REQUIRED FILTERS WERE REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. THIS FAILED, OVERHAULED PUMP WAS A RECENT WARRANTY REPLACEMENT FOR PREVIOUS OVERHAULED PUMP THAT HAD FAILED WITH LOW (220 HRS) TSO. BOTH PUMPS WERE O/H BY SAME REPAIR STATION. THIS OPERATOR HAS NEVER SEEN THIS BRAND OF PUMP GO TO THE REQUIRED O/H INTERVAL (3,000 HRS). THESE PUMPS GENERALLY SEEM TO FAIL AROUND 700-900 HRS OFOPERATING TIME AS DERIVED FROM PREVIOUS AC RECORDS. (K)