As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED DUE TO LT ENGINE HYDRAULIC PUMP BECOMING INOPERATIVE AND PTU MESSAGE DURING CRUISE. REMOVED LT ENGINE CASE DRAIN FILTER. NO EVIDENCE OF PUMP FAILURE. REPLACED LT ENGINE HYDRAULIC PUMP, EDP PRESSURE SWITCH AND CASE DRAIN FILTER IAW AMM. OPS AND LEAK CHECK GOOD IAW AMM. PTU OPS CHECK GOOD IAW AMM. RAN LT ENGINE AT IDLE. ALL INDICATIONS NORMAL.