As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB CHECK SWITCHED THE NR 1 B ELECTRIC PUMP OFF AND NOTICED PRESSURE FLUCTUATION ON B SYSTEM GUAGE. TURNED NR 1 ELEC PUMP BACK ON AND SEVERAL SECONDS LATER LOW NR 1 PUMP LOW PRESSURE LIGHT ILLUMINATED AND SYSTEM PRESSURE DROPPED TO 2200 PSI- UPON EXAM FOUND NR 1B ELECTRIC PUMP C/B POPPPED-PERFORMED POM PROCEDURE-LANDED IN ATL. REPLACED B SYSTEM HYD. PUMPS, CKS GD.