On November 13, at approximately 3:54 PM ET (11:54 PM Moscow time), the FAA announced a nationwide grounding of flights "due to emergency circumstances and safety reasons." According to the department's instructions, all departing planes must remain on the ground until further notice. International flights to the United States will be accepted on a case-by-case basis.

On November 13, at approximately 3:54 PM ET (11:54 PM Moscow time), the FAA announced a nationwide grounding of flights "due to emergency circumstances and safety reasons." According to the department's instructions, all departing planes must remain on the ground until further notice. International flights to the United States will be accepted on a case-by-case basis.

The decision follows reports of serious malfunctions in the air traffic control communication system.