Mathias Rust Square was jokingly referred to by Muscovites as Sheremetyevo-3 (Sheremetyevo-1 and -2 being the two terminals at Moscow's main international airport). At the end of 1987, the police radio code used by law enforcement officers in Moscow was allegedly updated to include a code for an aircraft landing. Shortly after the incident, SubLogic, the original publishers of the "Flight Simulator" franchise, issued a scenery disk that expanded the original program's coverage area to include the Eastern Bloc. A challenge in the expansion pack was to land in Red Square as Rust had just done. Following the 20th anniversary of his
Mathias Rust but was denied. The fighters lost contact with Rust soon after this. While they were being directed back to him he disappeared from radar near Staraya Russa. West German magazine "Bunte" speculated that he might have landed there for some time, noting that he changed his clothes during his flight and that he took too much time to fly to Moscow considering his plane's speed and the weather conditions. Air defence re-established contact with Rust's plane several times but confusion followed all of these events. The PVO system had shortly before been divided into several districts, which simplified management but