Notable event

Emergency: squawk 7500

Notable flight event recorded by the PlaneTrack receiver network on Mon 14 Sep 2026, 19:12 UTC.

Event record

Flight	N408ES
Aircraft	A4CACE
Aircraft type	C72R
First seen	Mon 14 Sep 2026, 19:12 UTC
Last seen	Mon 14 Sep 2026, 19:29 UTC
Position	42.411, -87.857 near WAUKEGAN RGNL (KUGN)
Altitude	1,100 ft

Details

Squawk	7500
Nature	unlawful interference

What is an emergency squawk?

Pilots set their transponder to 7700 for a general emergency, 7600 for lost radio contact or 7500 for unlawful interference. Most 7700 codes are precautionary: a medical problem on board, a technical warning or a return to the departure airport. Codes are sometimes set by mistake and corrected within seconds.

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Event detected automatically from live ADS-B data. Times are UTC. Automated detections can occasionally misread routine operations.