As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TWENTY MINUTES INTO FLIGHT, HYDRAULIC LOOK UP AND GREEN HYDRAULIC QTY LIGHT CAME ON, GREEN QTY FELL TO .125. INSPECTED RIGHT MAIN GEAR RETRACTION LINE TO CYLINDER (FLEX) LEAKING. INSTALLED A FLEX LINE (REPLACEMENT) TO RETRACT CYLINDER, PRESSURE CHECK OK, SERVICED HYD.