EmergencyDescent — N139VM

2026-05-21 20:47 UTC· 09IS → ?· CZECH JET LLC· L39

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N139VM (Czech JET) had departed 09IS on 2026-05-21. SkyMeter detected a emergencydescent at 20:47 UTC. Trace data at the event: 25634 ft AGL, 303 kt GS. METAR at the time reported 8 kt wind, 8 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

Pilot review data

  • 25634 ft AGL at event
  • 303 kt ground speed
  • 0 fpm vertical
  • 8 kt wind
  • 8 kt crosswind component

Flight context

  • N139VM
  • Czech JET
  • L39
  • 2026-05-21 20:47 UTC

All events on this flight

EmergencyDescent 20:47:37 UTC · · 25,634 ft AGL · 303 kt GS
EmergencyDescent 20:47:36 UTC · · 25,666 ft AGL · 302 kt GS
EmergencyDescent 20:47:37 UTC · · 25,634 ft AGL · 303 kt GS

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

SkyMeter · trace data observed via ADS-B