As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TOTAL LOSS OF FLUID IN YELLOW HYDRAULIC SYSTEM. COM 2.29.33 USED TO SECURE SYSTEM. PUMP SHUTOFF IMMEDIATELY PER FIRST OFFICER. AN EMERGENCY WAS DECLARED AT DESTINATION, THE LANDING AND TAXI TO GATE WAS UNEVENTFUL. CORRECTION WAS REPLACEMENT OF O-RING ON FITTING, ON TOP OF YELLOW HYDRAULIC SYSTEM ACCUMULATOR. LEAK AND OPS CHECK OK.