As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX INFLIGHT - PRIOR TO DESCENT NR 1 ENGINE DRIVEN HYDRAULIC PUMP BEGAN TO FLICKER ON AND OFF. SYSTEM A HYDRAULIC QUANTITY WENT FROM 84 TO 74. LANDED LAX WITHOUT INCIDENT. REPLACED NR 1 ENGINE HYDRAULIC PUMP AND HOSES AND CASE DRAIN. REPLACED HYDRAULIC RESERVOIR PRESSURE MODULE. SYSTEM GROUND CHECKED NORMAL OPERATION.