Gulfstream Jet Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 150; Flight Crew Total 5000; Flight Crew Type 2500
Situational Awareness
Conflict NMAC
Flight Crew Took Evasive Action
Human Factors
Weather Clear unlimited visibility. We were on an IFR flight plan being vectored into PWK at 5000ft and 250kts. ATC never warned us of the glider and ATC did not have a Primary or Secondary target. We did not receive an RA or a TA. The glider moved from our upper right crossing in front of us in a descending left bank. I disengaged the autopilot and banked right about 20 degrees and descended 300ft. The copilot immediately notified ATC. ATC replied that they did not show a target. We then climbed back up to 5000ft and on heading.
G200 Captain reported a NMAC with a glider while inbound to PWK. Glider reportedly had no transponder and ATC was unaware of their position.