As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER AN UNEVENTFUL LANDING, THE FLIGHT CREW NOTED HYDRAULIC FLUID LEAKING FROM THE AIRCRAFT BELLY. MAINTENANCE PERSONNEL DISCOVERED A LOOSE JAM NUT ON A FITTING ON THE INBOARD GEAR DOOR SELECTOR VALVE. JAM NUT WAS TIGHTENED, SYSTEM LEAK CHECK WAS SATISFACTORY. RESERVOIR SERVICED AND HYDRAULIC SYSTEM TESTED.