As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED HYD 1 LOW PRESS AMBER CAUTION MESSAGE IN FLIGHT. CREW DIVERTED AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND HYDRAULIC LINE SHEARED. MAINTENANCE REMOVED AND REPLACED HYDRAULIC LINE AND LEFT EDP (ENGINE DRIVEN PUMP) AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.