Medium Large Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 25
Distraction; Situational Awareness; Communication Breakdown
ATC Issue All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Separated Traffic
Procedure; Company Policy; Airspace Structure; Airport
I was busy and working West radar. I gave a sequence to East radar on Aircraft X to Runway 4 at GSP. We were both busy and the East controller had been certified for 1 week. I did not notice a VFR on a 1200 code depart GMU to the southeast. The East controller was busy; but he noticed the GMU departure and issued vectors to Aircraft X and held the plane at 3;000 MSL. From what I can tell he did a really great job.Only about 20 minutes before this I had an aircraft on arrival to Runway 4 at GSP. There was also a VFR that departed GMU. For whatever reason (the GMU Controller or the pilot); it was the best deconfliction I have seen in this scenario from the VFR. The VFR crossed GSP Runway 4 final 8 or 9 miles from the runway; which made it a non event for my traffic on the base.I was relieved shortly after the Aircraft X event. I went to the Tower before my break to suggest a runway change. I thought there would be a lot more GMU departures to the southeast because of a fly in at SC00. I had rather have the unidentified aircraft under a departure than an arrival. The Tower initiated a runway change.Recommendation: This is a terrible situation because it is not obvious that it is getting ready to happen. Once you realize it; your options are: an unstable approach; TCAS RA; or vectors around for a re-sequence. There are also wake turbulence issues. The GSP Air Traffic Manager (ATM) suggested a VFR fix on the GSP Runway 4 final. The VFR's would be required to cross at or outside of it and at or below a certain altitude. We know this is a problem. We have the opportunity to fix it before the problem changes to disaster.
GSP TRACON Controller reported an occurrence which routinely happens of VFR aircraft not in communication with ATC departing one airport into the final approach course traffic of another airport.