As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT 2210 - THE CREW REPORTED SHORTLY AFTER TAKEOFF A STRONG SMELL OF ELECTRICAL BURNING IN THE COCKPIT. THE AIRCRAFT RETURNED TO CLE AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND REPLACED THE CURRENT SENSOR RELAY KOO57. OPERATIONAL CHECKS WERE GOOD.