As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 2183 - EWR - FLIGHT CREW REPORTED BLEED NR 2 LOW TEMP ON EICAS. CREW PERFORMED AIR RETURN AND LANDED ACFT UNEVENTFULLY. EWR MX REMOVED AND REPLACED BLEED NR PUSH BUTTON SWITCH AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.