Medium Large Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 14
Communication Breakdown; Distraction; Situational Awareness
ATC Issue All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance; Air Traffic Control Separated Traffic
Human Factors; Procedure
Aircraft Y was transitioning south to the northwest. Aircraft Y was pointed out to CMH approach. Aircraft Y was approximately 5 miles west of DAY when Aircraft X switched over to local controls frequency. Aircraft X had been cleared for the visual approach to runway 6L without any exchange of traffic on Aircraft Y. Aircraft X was flying directly at and descending toward Aircraft Y as the DAY controller exchanged traffic information between the two aircraft. Thanks to the actions of the DAY controller no separation was lost.This was an extremely dangerous operation by CMH approach. Before you clear and ship an aircraft on an approach; it is the controller's responsibility to ensure all conflicts have been resolved. They failed to accomplish this very important requirement. Had Aircraft X delayed his check in; or had difficulty with the frequency; there could have been a loss of separation or a catastrophic event.I'm reminded of the aircraft accident that occurred in California when a B727 was cleared for a visual approach and the conflict with a C172 was not resolved which resulted in a mid-air collision.I would recommend CMH resolve all traffic conflicts prior to clearing an aircraft for an approach or shipping them to tower.
DAY Controller reported an airborne conflict that was not resolved by Approach Control. Local DAY Control resolved the situation.