As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 HYDRAULIC PUMP CAUTION ILLUMINATED ON TAXI TO GATE. MAINTENANCE REPLACED DC CONTACTOR K-23 AND RELAY RL4 (P/N M610619-022, QX CODE 6-2431-1-0009). PERFORMED BLEEDING OF THE NR 3 HYDRAULIC SYSTEM IAW Q400 TASK 29-10-00-870-803. PERFORMED FUNCTIONAL TEST OF THE NR 3 HYDRAULIC SYSTEM IAW TASK 29-12-00-720-801. FUNCTIONAL TEST GOOD. AIRCRAFT RETURNED TO SERVICE.