What was found
IN FLIGHT EICAS MESSAGE "HYD 2 LO QTY" LIGHT ILLUMINATED. ON FINAL APP AFTER LANDING GEAR WAS LOWERED "HYD 2 PUMP FAIL". RAN QRH CHECKLIST. MISSED APPROACH PERFORMED, AND LANDED SAFELY. DURING FLIGHT SYSTEM 2 HYD LEVEL WENT FROM 20% TO 0 % WAS NOTED AFTER LANDED. NOSE WHEEL STEERING FAIL MESSAGE AFTER LANDING AND BRAKE OVERHEAT WARNING. AIRCRAFT TOWED TO THE GATE AND REMOVED FROM SERVICE. FOUND LEAKING R/H INBD ELEVATOR PCU, REPLACED. PERFORMED CHAPTER 5 INSPECTION FOR HYD RUN DRY SITUATION. ALL OPS CHECKS AND LEAK CHECKS GOOD. RETURNED TO SERVICE.