Squawk 7600 transmission — SWA401

2025-11-27 18:08 UTC· KMCO MBPV· SOUTHWEST AIRLINES CO· B737

SWA401 (Southwest Airlines) was operating from KMCO to MBPV on 2025-11-27. SkyMeter recorded a 7600 transponder transmission at 18:08 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: 16231 ft AGL, 331 kt GS. Approach stability score: 87/100. 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 14 kt wind, 13 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • SECURITY5/2809 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–2,000 ft

    Palm Beach, FL, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local

    View FAA NOTAM →

SkyMeter cross-referenced this flight against FAA-published TFRs that were active during its window and within its geographic bounding box. Overlap doesn't necessarily mean violation — the aircraft may have been outside the TFR’s precise polygon or flying under air-traffic-control coordination.

Pilot review data

  • 16231 ft AGL at event
  • 331 kt ground speed
  • 0 fpm vertical
  • Approach stability 87/100
  • 14 kt wind
  • 13 kt crosswind component

Flight context

  • SWA401
  • Southwest Airlines
  • B737
  • KMCO → MBPV
  • 2025-11-27 18:08 UTC

All events on this flight

Squawk 7600 transmission 18:08:26 UTC · · 16,231 ft AGL · 331 kt GS
Squawk 7600 transmission 18:08:26 UTC · · 16,231 ft AGL · 331 kt GS
Squawk 7600 transmission 18:08:26 UTC · · 16,231 ft AGL · 331 kt GS
Squawk 7600 transmission 18:08:26 UTC · · 16,231 ft AGL · 331 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