The FAA issued Notams (KICZ A0012/21 and A0013/21), warning U.S. airlines to review current security/threat information and to provide at least 72-hours advance notice of planned flights over airspace covering the Russian-Ukraine border.
The U.S. Federal Aviation Administration recommends providing this notice due to the potential safety-of-flight risks associated with escalating regional tensions between Russia and Ukraine, which could potentially result in no-notice cross-border skirmishes, increased military activities, and/or conflict.
It is advised to take caution when flying "to/from/within or above" the flight information (RPI) areas of Kyiv, the Dnieper and the Russian-occupied Simferopol, as well as in the areas of the FIR of Moscow and Rostov-on-Don located within 100 nautical miles.
The documents were published on the FAA portal in connection with "possible risks to flight safety associated with the escalation of regional tensions between Russia and Ukraine, which could potentially lead to cross-border clashes without prior notice, increased military activity and/or conflict".
The State Aviation Service reacted assured that the airspace over Ukraine's responsibility is completely safe.
"All other airspace under the responsibility of the government of Ukraine is now safe and accessible for planning and performing flights of civil aviation aircraft," the administration stated.