Squawk 7700 transmission — UAL2745

2026-02-21 05:11 UTC· KDEN → KSJC· UNITED AIRLINES INC· B739

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UAL2745 (United Airlines) was operating from KDEN to KSJC on 2026-02-21. SkyMeter recorded a 7700 transponder transmission at 05:11 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: 3186 ft AGL, 185 kt GS. METAR at the time reported 3 kt wind, 1 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

Pilot review data

  • 3186 ft AGL at event
  • 185 kt ground speed
  • 0 fpm vertical
  • 3 kt wind
  • 1 kt crosswind component

Flight context

  • UAL2745
  • United Airlines
  • B739
  • KDEN → KSJC
  • 2026-02-21 05:11 UTC

All events on this flight

Squawk 7700 transmission 05:11:06 UTC · · 3,186 ft AGL · 185 kt GS
Squawk 7700 transmission 05:11:06 UTC · · 3,186 ft AGL · 185 kt GS
Go-around 05:08:59 UTC · KSJC runway 30L · 1,939 ft AGL · 171 kt GS
Go-around 05:08:59 UTC · KSJC runway 30L · 1,939 ft AGL · 171 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