What was found
(CAN) ON DESCENT, NR 1 HYDRAULIC SYSTEM PUMP FAILED, HALFWAY THROUGH CHECK LIST, NR 2 A-PUMP LOW PRESSURE LIGHT CAME ON, WITH CORRESPONDING DROP OF A-SYSTEM PRESSURE. LOSS OF A-SYSTEM PRESSURE CHECK LIST CARRIED OUT , NR 1 AND NR 2 ENGINE CASE DRAIN FILTERS CHECKED PER WORK CARD 1124-1 AND -2. NO FAULTS FOUND. HYDRAULIC SYSTEM PRESSURE REGULATOR REPLACED.