As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULIC SYSTEM-B LOW QTY LIGHT CAME ON IN FLIGHT. QUANTITY INDICATED LESS THAN QUARTER FULL. FOUND RT O/B AILERON ACTUATOR PRESSURE LINE LEAKING AT ANGULAR SEAL PLATE (P/N 277203191). REPLACED SEAL, SERVICED HYDRAULICS AND LEAK CHECKS SATISFACTORY.