Unstable approach — N42592

KUGN · 05

2026-06-06 20:09 UTC· KLOM → KUGN· TPL FLIGHT LLC· C560

▶ Replay 📊 Analyse

N42592 (TPL Flight) was operating from KLOM to KUGN on 2026-06-06. SkyMeter detected a low approach-stability score at Waukegan National Airport (KUGN) on runway 05 at 20:09 UTC. Trace data at the event: 1841 ft AGL, 137 kt GS. Approach stability score: 41/100. Scores below 50 occur on under 10% of approaches at this runway and indicate the v2 scorer flagged the approach as highly anomalous (three or more gates exceeded the runway's P90 envelope simultaneously). METAR at the time reported 6 kt wind, 2 kt crosswind component, 16,093 m visibility. The approach-stability score rates the final approach against stabilized-approach gates (glideslope, lateral deviation, descent rate, and IAS) at defined altitudes. A low score means one or more of those were outside the normal envelope for how the approach was flown. The score is graded by guidance type, so instrument approaches (ILS or an aligned straight-in) are held to the full gate set, while visual and pattern arrivals are surfaced only when the score is clearly low. The score is advisory and observational, a deviation measure, not an assertion of an accident. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • UAS PUBLIC GATHERING6/3661 2026-06-03 06:00Z – 2026-06-07 18:00Z

    COLUMBUS, OH, Wednesday, June 3, 2026 through Sunday, June 7, 2026 UTC

    View FAA NOTAM →
  • UAS PUBLIC GATHERING6/3706 2026-06-03 06:00Z – 2026-06-07 18:00Z

    COLUMBUS, OH, Wednesday, June 3, 2026 through Sunday, June 7, 2026 UTC

    View FAA NOTAM →
  • VIP6/5158 2026-06-05 23:30Z – 2026-06-08 23:30Z SFC–17,999 ft

    Bedminster, NJ, Friday, June 5, 2026 through Monday, June 8, 2026 Local

    View FAA NOTAM →
  • VIP6/5160 2026-06-05 23:30Z – 2026-06-08 23:30Z SFC–17,999 ft

    Bedminster, NJ, Friday, June 5, 2026 through Monday, June 8, 2026 Local

    View FAA NOTAM →
  • SECURITY6/5586 2026-06-06 17:30Z – 2026-06-06 22:30Z SFC–400 ft

    Chicago, IL, Saturday, June 6, 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

  • Runway 05
  • 1841 ft AGL at event
  • 137 kt ground speed
  • 0 fpm vertical
  • Approach stability 41/100
  • 6 kt wind
  • 2 kt crosswind component
  • 16,093 m visibility
  • METAR KUGN 142151Z 03004KT 10SM OVC020 14/13 A3014 RMK AO2 SLP204 T01440128

Flight context

  • N42592
  • TPL Flight
  • C560
  • KLOM → KUGN
  • 2026-06-06 20:09 UTC
  • KUGN runway 05

All events on this flight

Unstable approach 20:09:36 UTC · KUGN runway 05 · 1,841 ft AGL · 137 kt GS
Unstable approach 20:09:36 UTC · KUGN runway 05 · 1,841 ft AGL · 137 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· KUGN