As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, "HYD VOL LOW B" CAS ILLUMINATED IN FLIGHT. ACCOMPLISHED CHECKLIST AND LANDED WITHOUT INCIDENT. VOLUME QTY INDICATED 10 PERCENT AT FIRST THEN DROPPED TO 0 PERCENT ON LANDING. REPLACED NR 2 HYDRAULIC PUMP OPS CK GOOD IAW MM 29-10-02.