As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THE NR 1 HYDRAULIC SYS HAD A LOW PRESSURE MESSAGE IN FLIGHT. DIVERTED AND LANDED WITHOUT INCIDENT. TROUBLESHOT THE NR 1 HYD SYS, INSPECTED AND FOUND HYDRAULIC PRESSURE LINE IN AFT EQUIPMENT BAY TO BE CHAFED. R & R THE HYDRAULIC LINE AND PERFORMED CHECKS IAW AMM. ACFT RELEASED FOR SERVICE.