Unstable approach — SWA3353

KSTL · 12R

2026-06-30 02:12 UTC· SOUTHWEST AIRLINES CO· B738

SWA3353 (Southwest Airlines) was inbound to KSTL on 2026-06-30. SkyMeter detected a low approach-stability score at St Louis Lambert International Airport (KSTL) on runway 12R at 02:12 UTC. Trace data at the event: 1714 ft AGL, 140 kt GS. Approach stability score: 57/100. Scores in this band occur on roughly 10-15% of approaches at this runway, with multiple gates outside the per-runway envelope. METAR at the time reported 10 kt wind, 8 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)
  • 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 →
  • SECURITY6/3954 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 →
  • SECURITY6/3952 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 →
  • SECURITY6/4141 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 →
  • SECURITY6/4022 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 →
  • SECURITY6/3997 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 →
  • HAZARDS6/9123 2026-06-18 12:00Z – 2026-06-30 05:00Z SFC–14,000 ft

    80NM N SILVER CITY, NM, Thursday, June 18, 2026 through Tuesday, June 30, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9125 2026-06-18 14:00Z – 2026-07-02 04:00Z SFC–10,000 ft

    45NM E MESA, AZ, Thursday, June 18, 2026 through Thursday, July 2, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9124 2026-06-18 14:00Z – 2026-07-01 04:00Z SFC–15,000 ft

    10NM N LOS ALAMOS, NM, Thursday, June 18, 2026 through Wednesday, July 1, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9420 2026-06-20 21:25Z – 2026-07-04 04:00Z SFC–12,000 ft

    40NM SE ALBUQUERQUE, NM, Saturday, June 20, 2026 through Saturday, July 4, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9456 2026-06-21 13:00Z – 2026-07-05 04:00Z SFC–12,000 ft

    40NM SE ALBUQUERQUE, NM, Sunday, June 21, 2026 through Sunday, July 5, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9496 2026-06-21 14:00Z – 2026-07-05 03:00Z SFC–13,000 ft

    33NM W SHOW LOW, AZ, Sunday, June 21, 2026 through Sunday, July 5, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9455 2026-06-21 14:00Z – 2026-07-05 04:00Z SFC–9,000 ft

    14NM E PAYSON, AZ, Sunday, June 21, 2026 through Sunday, July 5, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9854 2026-06-23 14:00Z – 2026-07-06 04:00Z SFC–10,000 ft

    45NM E MESA, AZ, Tuesday, June 23, 2026 through Monday, July 6, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/0466 2026-06-24 16:30Z – 2026-06-30 03:00Z SFC–13,000 ft

    50NM E ALBUQUERQUE, NM, Wednesday, June 24, 2026 through Tuesday, June 30, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/0608 2026-06-25 13:00Z – 2026-07-09 03:00Z SFC–14,000 ft

    15NM W LOS ALAMOS, NM, Thursday, June 25, 2026 through Thursday, July 9, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1053 2026-06-27 14:00Z – 2026-07-11 04:00Z SFC–15,000 ft

    21NM NW BLANDING, UT, Saturday, June 27, 2026 through Saturday, July 11, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1130 2026-06-28 06:00Z – 2026-07-12 04:00Z SFC–12,500 ft

    22NM N CORTEZ, CO, Sunday, June 28, 2026 through Sunday, July 12, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1178 2026-06-28 13:31Z – 2026-07-13 04:00Z SFC–17,000 ft

    2NM N OURAY, CO, Sunday, June 28, 2026 through Monday, July 13, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1169 2026-06-28 14:00Z – 2026-07-12 03:00Z SFC–12,500 ft

    32NM NW TAOS, NM, Sunday, June 28, 2026 through Sunday, July 12, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1156 2026-06-28 14:00Z – 2026-07-12 03:00Z SFC–12,500 ft

    32NM NW TAOS, NM, Sunday, June 28, 2026 through Sunday, July 12, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1324 2026-06-29 12:00Z – 2026-07-13 05:00Z SFC–13,000 ft

    18NM N CORTEZ, CO, Monday, June 29, 2026 through Monday, July 13, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1310 2026-06-29 12:00Z – 2026-07-13 04:00Z SFC–17,000 ft

    2NM N OURAY, CO, Monday, June 29, 2026 through Monday, July 13, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1416 2026-06-29 14:37Z – 2026-07-14 04:00Z SFC–13,500 ft

    15NM NW CAÑON CITY, CO, Monday, June 29, 2026 through Tuesday, July 14, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1491 2026-06-29 16:06Z – 2026-06-30 12:00Z SFC–15,000 ft

    22NM SW PUEBLO, CO, Monday, June 29, 2026 through Tuesday, June 30, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1584 2026-06-29 18:38Z – 2026-07-13 04:00Z SFC–12,500 ft

    32NM NW TAOS, NM, Monday, June 29, 2026 through Monday, July 13, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1594 2026-06-29 18:49Z – 2026-07-13 03:00Z SFC–12,500 ft

    32NM NW TAOS, NM, Monday, June 29, 2026 through Monday, July 13, 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 12R
  • 1714 ft AGL at event
  • 140 kt ground speed
  • 0 fpm vertical
  • Approach stability 57/100
  • 10 kt wind
  • 8 kt crosswind component
  • 16,093 m visibility
  • KSTL 080951Z COR 24003KT 10SM CLR 14/10 A3004 RMK AO2 SLP161 T01390100 $

Flight context

  • SWA3353
  • Southwest Airlines
  • B738
  • 2026-06-30 02:12 UTC
  • KSTL runway 12R

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· KSTL