The Izvestia newspaper writes about this with reference to a corresponding letter from the deputy head of the Federal Air Transport Agency, Dmitry Yadrov.
As follows from the document, these recommendations are related to the cases of “jamming” and possible substitution of GPS signals that have become more frequent after February 24.
In particular, it is noted that similar phenomena were observed in the Kaliningrad region, near the countries of the Baltic Sea basin, in the eastern part of Finland, in the Black Sea, in the Eastern Mediterranean, Israel, Cyprus, Lebanon, Syria, Turkey and northern Iraq.
As specified, in connection with this, pilots were advised to immediately report to air traffic controllers “failures, deterioration and abnormal operation of GPS” or related avionics.
In addition, aircraft crews must be prepared to perform standard takeoff and landing procedures that are not related to the use of a satellite signal.
Earlier, the Federal Air Transport Agency commented on the news that the European Commission included 21 Russian airlines in the aviation security blacklist.
As noted, this decision "was made in absentia and does not have any grounds related to the technical condition of the aircraft fleet of Russian air carriers, maintaining the airworthiness of these aircraft, and the execution of leasing transactions."
In addition, the Federal Air Transport Agency, as a response to the ban by the EU member states on the operation of flights of Russian aircraft, closed the sky for airlines of 36 states.
Later, this ban was introduced in relation to several more countries.