Small Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 5.0
Communication Breakdown; Distraction; Situational Awareness; Time Pressure; Workload
ATC Issue All Types; Airspace Violation All Types; Conflict Airborne Conflict; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance; Air Traffic Control Separated Traffic; Air Traffic Control Issued Advisory / Alert; Flight Crew Landed in Emergency Condition; General Flight Cancelled / Delayed
Company Policy; Human Factors; Procedure; Aircraft; Airspace Structure; Chart Or Publication
I had [priority requested] by my number 2 aircraft in my sequence who was following a slow moving citation jet. I vectored out the citation and made the [priority] aircraft number one and gave them direct to the airport. After achieving what I initially thought was enough space between the 2 IFR aircraft I turned in the citation jet and soon realized I didn't have enough room behind the [priority aircraft]. I vectored the citation back out and leveled him at 14000 feet by the time I had my spacing he was in conflict with the jump zone I called traffic to both the sky dive aircraft and the citation I then turned the citation an additional 30 degrees right to clear the confliction of the sky dive aircraft however he was still in the sky dive area. Soon after the citation began to descend I told him to maintain altitude but he advised me he was responding to a TCAS RA. He descended and exited the sky dive area without further incident. During the incident I had a [priority aircraft] I was coordinating with the CIC and approach as well as some frequency congestion working a high and low combined at the time. As well as working a much larger scale than normal made the conflict harder to see.I shouldn't have assumed the sky dive aircraft would have ceased his sky dive activities when calling traffic to him; I believe I failed to tell him the traffic would enter the jump area as well as allowing the IFR aircraft to descend to an altitude that would put him underneath the sky divers jumping from 14500 ft. I should have gone further away from the jump zone not just separating from the aircraft.
ATC Center Controller reported vectoring an IFR aircraft for sequencing behind a priority aircraft through a parachute jump zone and below the altitude of the jumpers.