As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT HYDRAULIC SYSTEM MSG AND LOW QTY LIGHT ILLUMINATED, QTY DOWN TO 0.4, PUMPS TURNED OFF AND HYD FLUID LOSS MINIMIZED. RETURN TO FIELD OVERWEIGHT LANDING. SUPPLEMENTAL DATA UPDATE REPLACED PACKING OF CASE DRAIN FILTER DIFFERENTIAL PRESSURE INDICATOR. OPS CHECK, NO MORE LEAKAGE FOUND.REFILLED RIGHT HYDRAULIC RESERVOIR.