As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT 3193 THE CREW REPORTED NR 2 PACK HAD A BURNING SMELL. THE SMELL WENT AWAY AFTER THE PACK WAS TURNED OFF. MAINTENANCE INSPECTED NR 2 PACK AND PERFORMED SYSTEM CHECKS. NO DEFECTS WERE FOUND. THE AIRCRAFT WAS RELEASED FOR SERVICE.