PH-WPB was the culprit...
https://www.flightradar24.com/data/airc ... b#2d996ec7
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https://www.radarbox.com/data/registration/PH-WPB
The Swiss air force guided a small propeller aircraft without radio communication to Italian airspace on Sunday.
A flight without radio contact is always a potential danger for the public, the army said.
This content was published on September 26, 2022 - 09:52September 26, 2022 - 09:52
At 10.53am the aircraft, which had taken off from Kempen in the Netherlands,
crossed the German border near Waldshut, the Swiss army said in a statement on Sunday.
Switzerland had been informed 12 minutes earlier by the French authorities
that an aircraft without radio contact was in the airspace over Colmar, in eastern France.
At 11.01am two F/A-18 fighter jets took off from Payerne in canton Vaud, the army said.
The patrol reached the Dutch aircraft a short time later over Samedan in southeast Switzerland
and successfully got the pilot to establish radio contact.
The aircraft was eventually escorted to Italian airspace west of Lake Garda. This “hot mission” resulted in sonic booms.
https://www.swissinfo.ch/eng/dutch-plan ... -airspace/
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https://www.upinthesky.nl/2022/09/27/ne ... aaljagers/
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https://www.telegraaf.nl/nieuws/8942388 ... mmunicatie