As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A HYD FLUID LEAK WAS IDENTIFIED WHEN CLOSING THE MAIN CARGO DOOR. INVESTIGATION IDENTIFIED FLUID LEAKING FROM THE CARGO DOOR MANIFOLD ASSY. MANIFOLD ASSY WAS REPLACED LEAK AND FUNCTION CHECKS CARRIED OUT AND THE SYS WAS FOUND SERVICEABLE.