Unstable approach — DAL820

DAL820 (Delta AIR Lines) was operating from KSLC to KDCA on 2026-07-13. SkyMeter detected a low approach-stability score at Ronald Reagan Washington National Airport (KDCA) on runway 19 at 20:44 UTC. Trace data at the event: 1124 ft AGL, 138 kt GS. Approach stability score: 43/100. 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 7 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.

• SECURITY6/4118 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  CARMEL, IN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4120 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  CINNCINATI, OH, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4125 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  MILFORD, OH, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4128 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  WESTFIELD, IN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4146 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Lawrence, KS, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4149 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Lawrence, KS, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4151 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Kansas City, MO, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4154 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Kansas City, KS, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4155 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Riverside, MO, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4157 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  PRAIRIE VILLAGE, KS, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4162 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Kansas City, MO, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4164 2026-06-01 06:00Z – 2026-07-21 05:59Z SFC–400 ft

  Sandy, UT, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4167 2026-06-01 06:00Z – 2026-07-21 05:59Z SFC–400 ft

  Salt Lake City, UT, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/7208 2026-06-23 21:07Z – 2026-07-21 03:59Z SFC–400 ft

  Westfield, IN

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• SECURITY6/7205 2026-06-23 21:07Z – 2026-07-21 03:59Z SFC–400 ft

  Carmel, IN

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• SECURITY6/7652 2026-07-01 16:07Z – 2026-07-21 04:59Z SFC–400 ft

  Riverside, MO

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• SECURITY6/7650 2026-07-01 16:07Z – 2026-07-21 04:59Z SFC–400 ft

  Kansas City, MO

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• HAZARDS6/2598 2026-07-02 04:42Z – 2026-07-16 04:00Z SFC–12,000 ft

  25NM W GRAND JUNCTION, CO, Thursday, July 2, 2026 through Thursday, July 16, 2026 UTC

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• SECURITY6/7864 2026-07-03 15:07Z – 2026-07-21 05:59Z SFC–400 ft

  Sandy, UT

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• SECURITY6/7862 2026-07-03 16:07Z – 2026-07-21 05:59Z SFC–400 ft

  Salt Lake City, UT

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• SECURITY6/7194 2026-07-03 16:07Z – 2026-07-21 03:59Z SFC–400 ft

  Columbus, OH

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• SECURITY6/7646 2026-07-03 16:07Z – 2026-07-21 04:59Z SFC–400 ft

  Lawrence, KS

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• SECURITY6/7647 2026-07-03 16:07Z – 2026-07-21 04:59Z SFC–400 ft

  Lawrence, KS

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• HAZARDS6/2845 2026-07-04 00:10Z – 2026-07-17 04:00Z SFC–12,500 ft

  6NM S SCIPIO, UT, Saturday, July 4, 2026 through Friday, July 17, 2026 UTC

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• HAZARDS6/2942 2026-07-05 12:00Z – 2026-07-19 04:00Z SFC–17,000 ft

  2NM W LEADVILLE, CO, Sunday, July 5, 2026 through Sunday, July 19, 2026 UTC

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• HAZARDS6/3007 2026-07-06 12:00Z – 2026-07-20 04:00Z SFC–17,000 ft

  1NM W LEADVILLE, CO, Monday, July 6, 2026 through Monday, July 20, 2026 UTC

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• HAZARDS6/3006 2026-07-06 12:00Z – 2026-07-20 04:00Z SFC–12,000 ft

  15NM W GRAND JUNCTION, CO, Monday, July 6, 2026 through Monday, July 20, 2026 UTC

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• HAZARDS6/3274 2026-07-07 00:35Z – 2026-07-20 04:00Z SFC–17,000 ft

  1NM W LEADVILLE, CO, Tuesday, July 7, 2026 through Monday, July 20, 2026 UTC

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• SECURITY6/7218 2026-07-09 11:07Z – 2026-07-21 03:59Z SFC–400 ft

  Cinncinati, OH

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• SECURITY6/7226 2026-07-09 11:07Z – 2026-07-21 03:59Z SFC–400 ft

  Milford, OH

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• SECURITY6/7651 2026-07-09 11:07Z – 2026-07-21 04:59Z SFC–400 ft

  Prairie Village, KS

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• HAZARDS6/4562 2026-07-10 12:00Z – 2026-07-24 05:00Z SFC–17,000 ft

  3NM W LEADVILLE, CO, Friday, July 10, 2026 through Friday, July 24, 2026 UTC

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• HAZARDS6/4906 2026-07-11 02:45Z – 2026-07-24 04:00Z SFC–14,000 ft

  7NM N OREM, UT, Saturday, July 11, 2026 through Friday, July 24, 2026 UTC

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• HAZARDS6/5152 2026-07-13 04:00Z – 2026-07-27 04:00Z SFC–15,000 ft

  14NM S STEAMBOAT SPRINGS, CO, Monday, July 13, 2026 through Monday, July 27, 2026 UTC

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• HAZARDS6/5274 2026-07-13 17:54Z – 2026-07-27 04:00Z SFC–15,500 ft

  15NM E HEBER CITY, UT, Monday, July 13, 2026 through Monday, July 27, 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