Notable event

Emergency: squawk 7700

Notable flight event recorded by the PlaneTrack receiver network on Thu 17 Sep 2026, 23:49 UTC.

Map of where UAL1690's emergency: squawk 7700 happened
UAL1690 aircraft photo
Photo: Tran Nguyen An Binh

Event record

FlightUAL1690
AircraftA135CB
Aircraft typeB737
Operator codeUAL
First seenThu 17 Sep 2026, 23:49 UTC
Last seenFri 18 Sep 2026, 02:03 UTC
Position35.381, -111.568 near Flagstaff Pulliam Airport (KFLG)
Altitude40,000 ft

Details

Squawk7700
Naturegeneral emergency

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.