Air Traffic Control Fully Certified
Situational Awareness; Communication Breakdown
Airspace Violation All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Airspace Structure; Human Factors; Procedure; Manuals; Company Policy; Chart Or Publication
I had just assumed the Local control position when I observed an unknown target on the radar level at 7;500 feet northbound cut through the eastern edge of our airspace. I transmitted in the blind in an attempt to reach out to the pilot; but was not able to. He exited to the north to an unknown destination. No traffic was affected.This is a persistent problem at BJC; with incidents appearing to be on the rise. We have a VFR corridor that is located on the extreme eastern edge of the airspace with a ceiling of 7;500 feet. The biggest issue this creates is the IFR aircraft are supposed to be at 7;000 feet the final for 30R; but sometimes they will be slightly higher. When we are on Runway 12L; the departures are put right in the face of any aircraft flying this corridor. The safety issue here is obvious. Something needs to be done about this.
A Tower Local Controller reported an aircraft fly through the airspace without making contact.