Notable event

Emergency: squawk 7700

Notable flight event recorded by the PlaneTrack receiver network on Mon 14 Sep 2026, 23:18 UTC.

Map of where AAL3040's emergency: squawk 7700 happened
AAL3040 aircraft photo
Photo: OMGcat

Event record

FlightAAL3040
AircraftACF0DA
Aircraft typeA321
Operator codeAAL
First seenMon 14 Sep 2026, 23:18 UTC
Last seenMon 14 Sep 2026, 23:20 UTC
Position41.969, -87.921 near CHICAGO OHARE INTERNATIONAL (KORD)
Altitude21,350 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.