As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYR Y RSVR LO LVL. LED TO TURNING OFF ENG 2 PUMP WHICH LED TO EMER LANDING IN EWR. MULTIPLE ASSOCIATED SYSTEM FAILURES.-FOUND CAUSE OF LEAK TO BE DAMAGED O-RING AT ENGINE 2 HYD PUMP PRESSURE SWITH IAW TSM 29-13-00-810-804-A. REMOVED AND REPLACED ENG 2 PRESSURE SWITCH O-RING IAW AMM 29-13-17. ALL OPS AND LEAK CHECKS NORMAL. ALL HYD QTY'S AND INDACATIONS NORMAL. MOC# 69742