Unstable approach — ATAC43

ATAC43 (Airborne Tactical Advantage) was inbound to KLUF on 2026-04-10. SkyMeter detected a unstable approach at Luke Air Force Base (KLUF) on runway 21R at 00:30 UTC. Trace data at the event: 2187 ft AGL, 199 kt GS. METAR at the time reported 8 kt wind, 2 kt crosswind component, 16,093 m visibility. An unstable approach is one where the aircraft was outside the runway's normal envelope for at least one gate (glideslope, lateral deviation, descent rate, or IAS) at a defined altitude on final. The flag is advisory. It documents a deviation from the per-runway baseline, not an accident. 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