Squawk 7500 transmission — GLO1533

2025-12-12 16:49 UTC· SBGR SBGR· B738

GLO1533 was operating from SBGR to SBGR on 2025-12-12. SkyMeter recorded a 7500 transponder transmission at 16:49 UTC. Code 7500 indicates unlawful interference; in practice the overwhelming majority of observed transmissions are transponder glitches, mode-select knob errors, or transient ADS-B noise rather than a declared hijack. SkyMeter records the signal; it does not claim a hijack occurred. Trace data at the event: 38087 ft AGL, 419 kt GS. Approach stability score: 94/100. 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 7 kt wind, 6 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

Pilot review data

  • 38087 ft AGL at event
  • 419 kt ground speed
  • 0 fpm vertical
  • Approach stability 94/100
  • 7 kt wind
  • 6 kt crosswind component

Flight context

  • GLO1533
  • B738
  • SBGR → SBGR
  • 2025-12-12 16:49 UTC

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