As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LT HYDRAULIC SYSTEM PRESSURE AND QUANTITY WERE LOST ON APPROACH. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND A LOOSE B-NUT TO LEFT HYDRAULIC BRAKE VALVE. THE FITTING WAS TIGHTENED AND THE LEFT HYDRAULIC SYSTEM WAS SERVICED, LEAK CHECKS WERE GOOD.