https://avherald.com/h?article=4bac50fa&opt=1
Incident: British Airways A320 over Switzerland on Jul 5th 2018, loss of communication
A British Airways Airbus A320-200, registration G-EUUN performing flight BA-610 from London Heathrow,EN (UK) to Palermo (Italy),
entered Swiss airspace at FL370 from French airspace however,
did not report on Swiss frequencies.
French ATC also were unable to raise the aircraft.
After several attempts to contact the aircraft by Swiss ATC the controller advised
military aircraft would intercept the A320.
A listener on frequency reported Swiss ATC radioed at least 4 times about an impending intercept by Swiss Hornets.
While the intercept aircraft were already airborne ATC tried again to contact the crew for 2 or 3 times,
however, without response.
Finally the aircraft responded, the Swiss fighter pilots congratulated the crew
for the special show they had just received.
https://avherald.com/h?article=4bac50fa&opt=1
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