Unstable approach — SWA4148

SWA4148 (Southwest Airlines) was operating from KLAS to KDCA on 2026-08-30. SkyMeter detected a low approach-stability score at Ronald Reagan Washington National Airport (KDCA) on runway 19 at 00:31 UTC. Trace data at the event: 1122 ft AGL, 148 kt GS. METAR at the time reported 6 kt wind, 4 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.

• SECURITY6/0708 2026-08-01 00:01Z – 2027-08-01 23:59Z SFC–400 ft

  Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC

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• HAZARDS6/1462 2026-08-04 13:00Z – 2026-09-01 04:00Z SFC–15,000 ft

  20NM SW PUEBLO, CO, Tuesday, August 4, 2026 through Tuesday, September 1, 2026 UTC

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• HAZARDS6/5937 2026-08-18 13:00Z – 2026-08-31 03:00Z SFC–13,000 ft

  4NM W RICHFIELD, UT, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/7092 2026-08-22 13:00Z – 2026-09-04 03:00Z SFC–14,000 ft

  26NM SW PRICE, UT, Saturday, August 22, 2026 through Friday, September 4, 2026 UTC

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• HAZARDS6/7115 2026-08-22 23:30Z – 2026-09-04 03:00Z SFC–13,000 ft

  41NM E PRICE, UT, Saturday, August 22, 2026 through Friday, September 4, 2026 UTC

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• HAZARDS6/7347 2026-08-24 13:00Z – 2026-09-07 04:00Z SFC–10,000 ft

  35NM SW PROVO, UT, Monday, August 24, 2026 through Monday, September 7, 2026 UTC

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• HAZARDS6/7530 2026-08-24 17:00Z – 2026-09-06 03:00Z SFC–10,000 ft

  35NM SW PROVO, UT, Monday, August 24, 2026 through Sunday, September 6, 2026 UTC

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• HAZARDS6/7463 2026-08-25 12:00Z – 2026-09-08 08:00Z SFC–16,500 ft

  1NM NE OURAY, CO, Tuesday, August 25, 2026 through Tuesday, September 8, 2026 UTC

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• HAZARDS6/7654 2026-08-25 13:00Z – 2026-09-07 04:00Z SFC–10,000 ft

  35NM SW PROVO, UT, Tuesday, August 25, 2026 through Monday, September 7, 2026 UTC

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• HAZARDS6/7986 2026-08-25 21:45Z – 2026-09-07 04:00Z SFC–12,000 ft

  32NM SW TOOELE, UT, Tuesday, August 25, 2026 through Monday, September 7, 2026 UTC

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• HAZARDS6/8502 2026-08-27 14:00Z – 2026-09-09 03:00Z SFC–15,000 ft

  48NM NW TAOS, NM, Thursday, August 27, 2026 through Wednesday, September 9, 2026 UTC

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• HAZARDS6/8806 2026-08-28 15:04Z – 2026-09-12 03:00Z SFC–15,000 ft

  30NM W TAOS, NM, Friday, August 28, 2026 through Saturday, September 12, 2026 UTC

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• VIP6/8638 2026-08-28 20:00Z – 2026-08-30 21:00Z SFC–4,999 ft

  Middleburg, VA, Friday, August 28, 2026 through Sunday, August 30, 2026 Local

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• HAZARDS6/8869 2026-08-28 21:32Z – 2026-09-12 03:00Z SFC–10,000 ft

  18NM SW LOVELAND, CO, Friday, August 28, 2026 through Saturday, September 12, 2026 UTC

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• VIP6/8771 2026-08-29 13:00Z – 2026-08-30 02:00Z SFC–9,999 ft

  Sterling, VA, Saturday, August 29, 2026 through Saturday, August 29, 2026 Local

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• HAZARDS6/8870 2026-08-29 14:00Z – 2026-09-12 03:00Z SFC–15,000 ft

  30NM W TAOS, NM, Saturday, August 29, 2026 through Saturday, September 12, 2026 UTC

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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.

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