As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THE NR 1 HYDRAULIC QUANTITY WAS LOW DURING FLIGHT. AFTER LANDING THE CREW RECEIVED A NR 1 HYDRAULIC FAIL MESSAGE. MAINTENANCE INSPECTED AND FOUND THE GROUND SPOILER ACTUATOR CRACKED AND LEAKING. MAINTENANCE REPLACED THE GROUND SPOILER ACTUATOR. OPS CHECKED GOOD.