Medium Transport; Low Wing; 2 Turbojet Eng
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 15
Distraction; Situational Awareness; Confusion
ATC Issue All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued Advisory / Alert
Procedure; Human Factors
I was given a point out by the RW Controller of Aircraft Y at 6000 ft; 15 SW of ICT NW bound; not expected to be any conflict at the time of the point out. I was later given control via handoff of Aircraft X; a [business jet] descending out of 10;000 ft 25 miles SW of ICT. Aircraft X was descended on initial contact; to 4000. At that time the Aircraft Y was clearly not a factor. There were other priorities I had to address after the communication with Aircraft X. Aircraft X reported the field in sight roughly 10nm SW of ICT; and Aircraft Y was about 6nm SE of ICT NW bound; still level at 6000.I cleared Aircraft X anticipating his current rate of descent would not ever be a factor for Aircraft Y. I subsequently shipped Aircraft X to the tower and continued to address other priorities. I looked again at Aircraft X and Y as part of my scan; and noticed Aircraft X very slowly descending out of 6000 on a possible conflict course with Aircraft Y; who was being pushed by the wind further south than his initial heading appeared. I called the tower controller who was giving traffic information to Aircraft X on Aircraft Y; as Aircraft X descended what appeared within minimums south of Aircraft Y. The computer generated 'ca' did not go off; nor were either aircraft given any evasive instructions. It appeared not to be a conflict. The 'snitch' computer thought otherwise.No recommendations. In my judgement; Aircraft X should have kept up his initial descent rate. Conflict avoided if he had.
ICT Approach Controller reported a loss of separation that he attributed to an aircraft not descending like he thought it would. Aircraft in question started out with a higher rate of descent; but must have changed when the aircraft got closer to the airport.