As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DECLARED EMERGENCY, GOT ENGINE DRIVEN B SIDE HYDRAULIC PRESSURE LIGHT. THEN SHOWED "0" QUANTITY BUT WAS STILL PRESSURIZED TO 2930 PSI. AFTER SOMETIME GOT ELECTRIC PUMP LIGHT AND "0" PRESSURE FOR A TOTAL B SIDE HYDRAULIC FAILURE. R&R "B" ELECTRIC MOTOR DRIVEN PUMP ACOUSTIC FILTER IAW AMM.