As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 6025, CVG TO SBN. ON TAKEOFF THE CREW NOTICED A ELECTRICAL BURNING SMELL, UNSURE IF IT WAS JUST IN THE COCKPIT OR IN CABIN ALSO. THE CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE TRACED THE SMELL TO THE FLIGHT GUIDANCE COMPUTER. THE FLIGHT GUIDANCE COMPUTER WAS REPLACED WITH NO FURTHER DEFECTS NOTED.