As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CENTER HYDRAULIC SYSTEM FLUID PRESSURE LOSS AFTER TAKEOFF. AIRCRAFT CONTINUED TO IAD, LANDED UNDER AMBER ALERT. *S/D* CAUSE ATTRIBUTED TO LEAK AT THE LEFTHAND MAIN LANDING GEAR ACTUATOR PRESSURE HOSE CAUSED BY CHAFING AGAINST HOSE GUIDE. INSTALLED NEW HOSE WITH A CHAFE GUARD FOR ADDITIONAL PROTECTION. FLEET WIDE CHECK ACCOMPLISHED.