Squawk 7600 transmission — SWA4584

2026-03-12 12:00 UTC· KTYS → KBWI· SOUTHWEST AIRLINES CO· B737

SWA4584 (Southwest Airlines) was operating from KTYS to KBWI on 2026-03-12. SkyMeter recorded a 7600 transponder transmission at 12:00 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: 21403 ft AGL, 416 kt GS. Approach stability score: 89/100. Scores in this band are observed on roughly 50% of approaches at this runway and represent the centerline of normal operations. METAR at the time reported 10 kt wind, 5 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

Pilot review data

  • 21403 ft AGL at event
  • 416 kt ground speed
  • 0 fpm vertical
  • Approach stability 89/100
  • 10 kt wind
  • 5 kt crosswind component

Flight context

  • SWA4584
  • Southwest Airlines
  • B737
  • KTYS → KBWI
  • 2026-03-12 12:00 UTC

All events on this flight

Squawk 7600 transmission 12:00:28 UTC · · 21,403 ft AGL · 416 kt GS
Squawk 7600 transmission 12:00:28 UTC · · 21,403 ft AGL · 416 kt GS
Squawk 7600 transmission 12:00:28 UTC · · 21,403 ft AGL · 416 kt GS
Squawk 7600 transmission 12:00:28 UTC · · 21,403 ft AGL · 416 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