Squawk 7600 transmission — SWA4337

2026-08-09 21:54 UTC· KDTW → KMDW· SOUTHWEST AIRLINES CO· B737

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SWA4337 (Southwest Airlines) was operating from KDTW to KMDW on 2026-08-09. SkyMeter recorded a 7600 transponder transmission at 21:54 UTC. Code 7600 indicates a lost-comms / NORDO state; brief transmissions are often transient radio or transponder issues that resolve without crew action. Trace data at the event: 23142 ft AGL, 326 kt GS. METAR at the time reported 6 kt wind, 6 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

Pilot review data

  • 23142 ft AGL at event
  • 326 kt ground speed
  • 0 fpm vertical
  • 6 kt wind
  • 6 kt crosswind component

Flight context

  • SWA4337
  • Southwest Airlines
  • B737
  • KDTW → KMDW
  • 2026-08-09 21:54 UTC

All events on this flight

Squawk 7600 transmission 21:54:08 UTC · · 23,142 ft AGL · 326 kt GS
Squawk 7600 transmission 21:54:08 UTC · · 23,142 ft AGL · 326 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