Commercial Fixed Wing
Air Traffic Control Fully Certified
Communication Breakdown
ATC Issue All Types; Airspace Violation All Types; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance
Procedure; Human Factors; Airspace Structure
Aircraft X was on a 240 heading when he reported the airport in sight. I cleared him for the Visual Approach and shipped him to the tower. The 240 heading aimed Aircraft X to about a 4 to 5 mile straight-in final. After shipping the aircraft to tower I noticed Aircraft X make a slight 5 to 10 degree turn away from the airport. Initially I wasn't concerned with the slight turn away from the airport; even though they're not supposed to turn away from the airport. I then noticed that Aircraft X turned to about a 200 heading; at that point I called tower on the shout line to ask what was going on. I asked if the pilot turned on his own or if the tower controller turned them out. The tower controller said he turned Aircraft X out for VFR traffic in their pattern. They turned out an IFR aircraft on a Visual Approach OUTSIDE of their airspace without as much as a heads up to us. The landing configuration put Aircraft X that they turned south into direct conflict of where south landing aircraft to an adjacent airport are normally at. The supervisor was informed and I asked them to call tower about this. They didn't call them nor did I see them make a report about it.Tower needs to accomplish the appropriate coordination before turning an IFR aircraft on a Visual Approach away from the airport especially when its in another controllers airspace. Nothing will happen to help here because from what I saw the supervisor didn't even call Tower nor did they make a report on the situation.
TRACON Controller reported the Tower Controller turned an aircraft that was still in the TRACON airspace without coordination.