As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDED UNDER AMBER ALERT DUE TO LOSS OF HYDRAULIC PRESSURE. MONITORED ENGINE, OPERATED ALL FLIGHT CONTROLS, NO LEAK OR FLUID LOSS NOTED ON REVERSERS. NOTED LEFT ENGINE LEAKING HYD FLUID. REMOVED HYDRAULIC LINES AND FOUND FITTING THROUGH BULKHEAD LOOSE. INSPECTED FOR CRACKS AND REINSTALLED. POSSIBLE ROOT CAUSE, LOOSENING OF HYDRAULIC LINE FITTINGS.