Unstable approach — GLF45

KCPS · 12L

2026-08-19 19:44 UTC· GULFSTREAM AEROSPACE CORP· GA6C

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GLF45 (Gulfstream Aerospace) was inbound to KCPS on 2026-08-19. SkyMeter detected a low approach-stability score at St Louis Downtown Airport (KCPS) on runway 12L at 19:44 UTC. Trace data at the event: 1519 ft AGL, 154 kt GS. Approach stability score: 37/100. 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 4 kt wind, 1 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 GATHERING6/2574 2026-08-13 12:00Z – 2026-08-24 05:00Z SFC–400 ft

    des moines, IA, Thursday, August 13, 2026 through Monday, August 24, 2026 UTC

    View FAA NOTAM →
  • SECURITY6/3628 2026-08-17 12:00Z – 2026-08-23 23:59Z SFC–400 ft

    SAINT LOUIS, MO, Monday, August 17, 2026 through Sunday, August 23, 2026 Local

    View FAA NOTAM →
  • SECURITY6/5108 2026-08-18 16:30Z – 2026-08-20 16:00Z SFC–17,999 ft

    Des Moines, IA, Tuesday, August 18, 2026 through Thursday, August 20, 2026 Local

    View FAA NOTAM →
  • HAZARDS6/6219 2026-08-19 10:30Z – 2026-08-19 23:00Z SFC–50 ft

    INDIANAPOLIS, IN, Wednesday, August 19, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/6220 2026-08-19 10:30Z – 2026-08-19 23:00Z SFC–5,000 ft

    INDIANAPOLIS, IN, Wednesday, August 19, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/5948 2026-08-19 14:00Z – 2026-08-19 19:00Z SFC–2,000 ft

    GLASFORD, IL, Wednesday, August 19, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/6296 2026-08-19 14:10Z – 2026-08-19 23:00Z SFC–4,000 ft

    INDIANAPOLIS, IN, Wednesday, August 19, 2026 UTC

    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 12L
  • 1519 ft AGL at event
  • 154 kt ground speed
  • 0 fpm vertical
  • Approach stability 37/100
  • 4 kt wind
  • 1 kt crosswind component
  • 16,093 m visibility
  • METAR KCPS 160253Z AUTO 18004KT 10SM FEW120 27/22 A3008 RMK AO2 SLP181 T02670222 53009 $

Flight context

  • GLF45
  • Gulfstream Aerospace
  • GA6C
  • 2026-08-19 19:44 UTC
  • KCPS runway 12L

All events on this flight

Unstable approach 19:44:38 UTC · KCPS runway 12L · 1,519 ft AGL · 154 kt GS
Unstable approach 19:44:38 UTC · KCPS runway 12L · 1,520 ft AGL · 154 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· KCPS