I think switching to a frequency that a different region uses could be dangerous, since then the airplanes near do border would receive the signal but the airport wouldn’t. This could lead to misscommunications.
PPS: They do try the emergency frequency, routing a message through the previous area controller as well as anything else they can think of first. I left it out for brevity. Of course, fighter jets are not the first choice.
I think switching to a frequency that a different region uses could be dangerous, since then the airplanes near do border would receive the signal but the airport wouldn’t. This could lead to misscommunications.
Also, the airline pays for the jets.
PS: source is https://youtu.be/9qM-xN7Bgg8
PPS: They do try the emergency frequency, routing a message through the previous area controller as well as anything else they can think of first. I left it out for brevity. Of course, fighter jets are not the first choice.