As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT 3029 THE CREW REPORTED A BURNING SMELL NOTICED IN THE CABIN AFTER TAKEOFF. THE AIRCRAFT RETURNED TO CLEVELAND AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND RAN ENGINES AND APU AT POWER WITH NO SMELL NOTICED. THE AIRCRAFT WAS RELEASED FOR SERVICE.