As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3115 - EWR - FLIGHT CREW REPORTED HYDRAULIC SYSTEM NR 1 LOW QUANTITY INDICATION. CREW DECIDED TO PERFORM AN AIR RETURN AND LANDED UNEVENTFULLY. EWR MX REMOVED AND REPLACED NR 1 BRAKE ASSEMBLY AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.