As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - DIVERTED TO MIA DUE TO LOSS OF GREEN SYSTEM HYDRAULIC SYSTEM. PRESSURE AND QUANTITY AT ZERO. LANDED MIA WITHOUT INCIDENT. AIRCRAFT TOWED TO GATE. FOUND HYDRAULIC FILTER MODULE LEAK DUE TO SPLIT O-RING. REPLACED O-RING AT HIGH PRESSURE CAP. REPLACED LEFT AND RIGHT HAND HYDRAULIC DRIVEN PUMP AND SERVICED BLUE AND GREEN SYSTEM TO PROPER LEVEL. SYSTEM GROUND CHECKED NORMAL OPERATION.