As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH, THE NR 1 HYDRAULIC LOW QUANTITY LIGHT ILLUMINATED. AIRCRAFT LANDED WITHOUT INCIDENT AND WAS TOWED TO THE GATE. REPLACED THE HYDRAULIC TRANSMITTER AND HYDRAULIC UNION ON NR 4 HYDRAULIC SYSTEM HEAT EXCHANGER PRESSURE LINE AND SECURED B-NUT ON NR 1 ENGINE DRIVEN PUMP HYDRAULIC PRESSURE LINE. OPERATIONAL CHECK GOOD.