As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN RETRACTING GEAR RECEIVED LEVEL 2 HYD 3 FAIL. DECLARED EMERGENCY. COMPLIED WITH CHECKLIST. ALTERNATE GEAR EXTENSION. DUE TO HSC MANUAL, EDP PUMPS RAN FOR APPROX 30 MINUTES WITH NO HYDRAULIC FLUID IN SYSTEM 3. EDP PUMPS SELECTED OFF AFTER LANDING. REMOVED AND REPLACED #3 ENGINE LOWER EDP PRESSURE LINE AND RIGHT HAND LANDING GEAR ACTUATOR LINE. OPERATIONAL AND LEAK CHECKS GOOD