As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CLIMB IT WAS NOTED THAT THE NR 1 STANDBY HYD PRESSURE WAS FLUCTUATING AROUND 700-1000 PSI. AFTER TRANSITION AND THE PUMP SWITCHED OFF, ENGINEERING ON THE GROUND WAS CONTACTED. REMOVAL/INST OF NR 1 STANDBY HYD PUMP ASSY IAW AMM 32-11-17, EGR C/O BOTH ENGINES, OPS CHECK AND LEAK CHECK C/O NIL FAULTS FOUND.