Unstable approach — SWA3352

KCPS · 23

2026-06-12 14:34 UTC· KPHX → KCPS· SOUTHWEST AIRLINES CO· B38M

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SWA3352 (Southwest Airlines) was operating from KPHX to KCPS on 2026-06-12. SkyMeter detected a low approach-stability score at St Louis Downtown Airport (KCPS) on runway 23 at 14:34 UTC. Trace data at the event: 1514 ft AGL, 152 kt GS. Approach stability score: 42/100. 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 5 kt wind, 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)
  • SECURITY6/3954 2026-06-01 00:00Z – 2026-07-20 23:59Z

    STILLWATER, OK, Monday, June 1, 2026 through Monday, July 20, 2026 UTC

    View FAA NOTAM →
  • SECURITY6/3996 2026-06-01 00:00Z – 2026-07-20 23:59Z

    OKLAHOMA CITY, OK, Monday, June 1, 2026 through Monday, July 20, 2026 UTC

    View FAA NOTAM →
  • SECURITY6/3952 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

    Stillwater, OK, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3997 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

    NORMAN, OK, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4022 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

    OKLAHOMA CITY, OK, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4141 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

    Tulsa, OK, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4161 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

    St, Louis, MO, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3948 2026-06-01 07:00Z – 2026-07-21 06:59Z

    MESA, AZ, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/6577 2026-06-08 22:46Z – 2026-06-13 04:00Z SFC–11,500 ft

    13NM W NUCLA, CO, Monday, June 8, 2026 through Saturday, June 13, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/6608 2026-06-09 15:00Z – 2026-06-22 04:00Z SFC–11,500 ft

    13NM W NUCLA, CO, Tuesday, June 9, 2026 through Monday, June 22, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/6780 2026-06-10 13:00Z – 2026-06-22 04:00Z SFC–10,000 ft

    14NM E FLAGSTAFF, AZ, Wednesday, June 10, 2026 through Monday, June 22, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/7402 2026-06-10 20:57Z – 2026-06-23 04:00Z SFC–8,500 ft

    34NM NE TRINIDAD, CO, Wednesday, June 10, 2026 through Tuesday, June 23, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/7478 2026-06-11 03:12Z – 2026-06-24 04:00Z SFC–11,500 ft

    20NM N NUCLA, CO, Thursday, June 11, 2026 through Wednesday, June 24, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/7479 2026-06-11 03:19Z – 2026-06-24 04:00Z SFC–11,500 ft

    10NM NW NUCLA, CO, Thursday, June 11, 2026 through Wednesday, June 24, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/7481 2026-06-11 14:00Z – 2026-06-24 03:00Z SFC–8,500 ft

    34NM NE TRINIDAD, CO, Thursday, June 11, 2026 through Wednesday, June 24, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/7863 2026-06-12 14:00Z – 2026-06-24 05:00Z SFC–14,000 ft

    80NM N SILVER CITY, NM, Friday, June 12, 2026 through Wednesday, June 24, 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 23
  • 1514 ft AGL at event
  • 152 kt ground speed
  • 0 fpm vertical
  • Approach stability 42/100
  • 5 kt wind
  • 0 kt crosswind component
  • 16,093 m visibility
  • METAR KCPS 120653Z AUTO 17003KT 10SM CLR 18/16 A2996 RMK AO2 SLP143 T01780156 $

Flight context

  • SWA3352
  • Southwest Airlines
  • B38M
  • KPHX → KCPS
  • 2026-06-12 14:34 UTC
  • KCPS runway 23

All events on this flight

Unstable approach 14:34:59 UTC · KCPS runway 23 · 1,514 ft AGL · 152 kt GS
Unstable approach 14:34:59 UTC · KCPS runway 23 · 1,514 ft AGL · 152 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