As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA - FLIGHT 2222 - AIRCRAFT RETURNED TO GATE AFTER RECEIVING A NR 2 ENGINE HYDRAULIC PUMP CAUTION INDICATION. THE NR 2 HYDRAULIC PRESSURE BLED TO 0 PSI. THE STANDBY HYDRAULIC PRESSURE WAS NORMAL. MAINTENANCE INSPECTED THE AIRCRAFT AND REPLACED THE NR 2 ENGINE DRIVEN PUMP. THE OPERATIONAL CHECK WAS GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.