Any Unknown or Unlisted Aircraft Manufacturer
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 1
Communication Breakdown; Confusion; Situational Awareness
ATC Issue All Types; Airspace Violation All Types; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Provided Assistance
Airspace Structure; Chart Or Publication
I observed an unknown aircraft from the south. When I reached out to him; he told me he was flying the VFR Corridor. He was a few miles west of the established corridor but it was easy to see why he became confused. No traffic was in the area and I did not pursue any action against this violator since a) he seemed genuinely confused and b) there was no other traffic in my airspace to be a factor.The airspace immediately east of the Class D airspace contains a VFR corridor that allows aircraft to transition without talking to us. Looking at the VFR Flyway Planning Chart on the reverse side the extreme western edge of this corridor juts into our airspace. That has the potential to put VFR aircraft in close proximity to the arrivals we have landing and departures. I propose a Class D extension be created on the eastern edge of our airspace to contain this portion of the corridor. This way; we have more control over the aircraft in this area and can alert them to any aircraft in their proximity.
An aircraft flew into the BJC Class D airspace without an ATC clearance. The aircraft was confused by the VFR flyway planning chart and thought they were outside of the Class D.