As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THE NR 1 HYDRAULIC SYSTEM QUANTITY DROPPING FROM 18% TO 4% DURING FLIGHT. CREW DECLARED AN EMERGENCY AND DIVERTED. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND A HYDRAULIC LINE CRACKED IN THE LEFT PYLON. MAINTENANCE REPLACED HYDRAULIC LINE IAW EMB AMM, OPS AND LEAK CHECK GOOD.