As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FL 120, NR 2 ENG HYD PRES CAUTION LIGHT ILLUMINATED. HYD NR 2 PRESS - 0 PSI - AFTER PERFORMING ABNORMAL CHECKLIST WITH PTU ON, PRESS 3000 PSI. UNEVENTFUL LANDING. MAINTENANCE CREW REPLACED THE NR 2 ENGINE DRIVEN HYDRAULIC PUMP.