As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3705 -DE/HYD- DECLARED EMERGENCY INTO SEA DUE TO LOSS OF A SYSTEM HYDRAULIC QUANTITY AND PRESSURE. CORRECTIVE ACTION: FOUND #1 EDP (ENGINE DRIVEN PUMP) LEAKING. REPLACED SAME. FLUSHED A SYSTEM HYDRAULICS. REPLACED CASE DRAIN FILTERS. FOUND PYLON HYDRAULIC PRESSURE LINE LEAK. REPLACED SAME. OPS CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.