In this article, I would like to acquaint those interested with the fact about how and when these first supersonic aircraft appeared in Czechoslovak Air Force. In the last twenty-five years, this has generally been described differently than it actually was. I don't know where and who first came up with the fact that the MiG-19P came to the republic in boxes. This was first published in 1991 in the Triad Edition, and since then everyone has made the same mistake. There are many of these publications, including books. In fact, MiG-19P aircraft flew over and landed at the airport in Kbely.