As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3948 DURING CRUISE THE CREW REPORTED, RECEIVED A HYDRAULIC 1 LOW QUANTITY MESSAGE FOLLOWED BY E1 HYDRAULIC PUMP FAIL AND THE ELECTRIC HYDRAULIC PUMP CYCLED ON AND OFF. AT GEAR EXTENSION RECEIVED A LANDING GEAR LEVER DISAGREE MESSAGE. THE CREW DECLARED AN EMERGENCY AND LANDED AT ORD WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE MAIN LANDING GEAR (RIGHT) ACTUATOR HOSE ASSEMBLY IAW EMB 145 MM CH 32-33-08. THE AIRCRAFT WAS RETURNED TO SERVICE.