As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RAN HYDRAULIC SYSTEMS WITH HYDRAULIC GROUND CART. FOUND LEFT MLG RETRACT ACTUATOR LEAKING. REPLACED HYDRAULIC LINE 110-3509 PER IPC ITEM 20. RAN HYDRAULICS NO LEAK NOTED. OPBLM IS INFORMED NEW ACTUATOR IS PLANESIDE. REMOVED AND INSTALLED NEW ACTUATOR.