As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 2753 - EWR - FLIGHT CREW REPORTED BLEED OVERTEMP - PACK NR 2 OVERHEAT ON EICAS. CREW PERFORMED AIR RETURN AND LANDED ACFT UNEVENTFUL. EWR MX REMOVED AND REPLACED PRE-COOLER DUCT AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.