As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLT 5737 THE CREW REPORTED ON APPROACH INTO CLE A STRONG ELECTRICAL BURNING ODOR. NO SMOKE WAS NOTED. THE SMELL WAS ALSO NOTED ON THE GROUND WITH PACK NR 1 TURNED OFF. MAINTENANCE INSPECTED AND PERFORMED TROUBLESHOOTING IAW FIM TASK CARD 21-20-00-810-801-A NO DEFECTS WERE FOUND. THE AIRCRAFT WAS RETURNED TO SERVICE.