As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED AN HYD SYS 1 FAIL MESSAGE IN FLIGHT. THE ACFT RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT. MX INSPECTED AND REPLACED THE HYD HOSE ON THE LT GEAR ACTUATOR. THEY ALSO REPLACED THE NR 1 ENGINE DRIVEN HYD PUMP. OPS CHECKS WERE GOOD.