Notable event

Emergency: squawk 7700

Notable flight event recorded by the PlaneTrack receiver network on Fri 11 Sep 2026, 19:16 UTC.

Map of where AAL1851's emergency: squawk 7700 happened
AAL1851 aircraft photo
Photo: Stephen J Stein

Event record

FlightAAL1851
AircraftACCED9
Aircraft typeA321
Operator codeAAL
First seenFri 11 Sep 2026, 19:16 UTC
Last seenFri 11 Sep 2026, 19:31 UTC
Position37.611, -122.383 near SAN FRANCISCO INTERNATIONAL (KSFO)

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.