Albatros (L39)
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Commercial; Flight Crew Multiengine
Flight Crew Last 90 Days 12; Flight Crew Total 4200; Flight Crew Type 120
Situational Awareness
ATC Issue All Types; Airspace Violation All Types; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Airspace Structure; Human Factors; Aircraft; Procedure
I was lead aircraft (L-39) with a wingman (BAE-AV-8) in a ferry flight to GYY. We were both flying experimental aircraft and are required to file VFR. The weather was VMC and because of the crowded Chicago airspace; we flew at 11;500 feet direct to GYY and asked for radar flight following to stay clear of controlled airspace. After climbing to cruising altitude; Milwaukee Departure told us that our radar service was terminated and frequency change approved. I went to Gary/Chicago Intl Tower and did a straight in to Runway 12. Ground Control told me to call Chicago TRACON. I was then informed that I had entered Class B airspace without permission. In retrospect; I should have continued to pursue radar flight following and assistance in an area with which I am not familiar. I am unsure as to how it was determined that I had violated airspace restrictions as both my wingman and I were monitoring our GPS and I showed descending beyond Chicago airspace.
L39 pilot is informed after landing at GYY that he and his wingman may have violated the ORD Class B airspace during their arrival from the north.