Squawk 7500 transmission — QFA773

QFA773 (Qantas Airways) was operating from YMML to YPPH on 2026-08-20. SkyMeter recorded a 7500 transponder transmission at 12:52 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: 30803 ft AGL, 442 kt GS. Approach stability score: 93/100. 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 4 kt wind, 2 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

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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