As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: EN ROUTE TO LGA, HYDRAULIC RESERVOIR LOW LEVEL. LOST GREEN HYDRAULIC SYSTEM. DIVERTED TO JFK FOR LONGER RUNWAY AND DECLARED EMERGENCY. PERFORMED MANUAL GEAR DEPLOYMENT PER PROCEDURES. AFTER LANDING NOTIFIED SERVICE GREEN SYSTEM LEAK. REPLACED CRACKED HYD LINE IAW AMM 20-21-11.