Squawk 7700 transmission — TSC894
2025-12-04 13:18 UTC· CYUL → TFFR· AIR TRANSAT A T INC.· A21N
TSC894 (AIR Transat A T) was operating from CYUL to TFFR on 2025-12-04. SkyMeter recorded a 7700 transponder transmission at 13:18 UTC. Code 7700 indicates a general emergency declaration (e.g. engine, medical, smoke). A sustained transmission is normally accompanied by ATC priority handling. Trace data at the event: 33322 ft AGL, 450 kt GS. METAR at the time reported 15 kt wind, 15 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.
Pilot review data
- 33322 ft AGL at event
- 450 kt ground speed
- 0 fpm vertical
- 15 kt wind
- 15 kt crosswind component
Flight context
- TSC894
- AIR Transat A T
- A21N
- CYUL → TFFR
- 2025-12-04 13:18 UTC
All events on this flight
Automated analysis. Events shown on this page (such as go-around, unstable approach, or runway events) are heuristic classifications produced by algorithms from publicly broadcast ADS-B data. They are intended to surface flights of interest for further review — they are not findings of fact, and they do not determine pilot fault, regulatory compliance, or the cause of any occurrence. Coverage gaps and sensor noise can affect accuracy. Only the relevant civil aviation authority or accident investigation body can make official determinations. How we detect events · Dispute or correct this data