Unstable approach — DAL727

DAL727 (Delta AIR Lines) was operating from KATL to KDCA on 2026-07-21. SkyMeter detected a low approach-stability score at Ronald Reagan Washington National Airport (KDCA) on runway 19 at 01:40 UTC. Trace data at the event: 1130 ft AGL, 138 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 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.

• SECURITY6/3968 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  Winston Salem, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/3970 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  White Sulphur Springs, WV, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/3971 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  Winston Salem, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/3979 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  ATLANTA, GA, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

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• SECURITY6/3991 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  MARIETTA, GA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/3998 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  Atlanta, GA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4001 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  GREENSBORO, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4004 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  CHARLOTTE, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4005 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  Greensboro, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4007 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  Charlotte, NC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4131 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  MYRTLE BEACH, SC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4132 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  Conway, SC, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/7169 2026-06-29 15:07Z – 2026-07-21 03:59Z SFC–400 ft

  White Sulphur Springs, WV

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• SECURITY6/7594 2026-07-08 16:07Z – 2026-07-21 03:59Z SFC–400 ft

  Atlanta, GA

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• SECURITY6/7597 2026-07-08 16:07Z – 2026-07-21 03:59Z SFC–400 ft

  Marietta, GA

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• SECURITY6/7564 2026-07-09 11:07Z – 2026-07-21 03:59Z SFC–400 ft

  Conway, SC

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• HAZARDS6/4931 2026-07-11 15:58Z – 2026-07-23 01:00Z SFC–3,000 ft

  2NM NE SHALLOTTE, NC, Saturday, July 11, 2026 through Thursday, July 23, 2026 UTC

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• HAZARDS6/5843 2026-07-14 23:37Z – 2026-07-22 23:45Z SFC–4,200 ft

  18NM SW WAYNESBORO, VA, Tuesday, July 14, 2026 through Wednesday, July 22, 2026 UTC

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• SECURITY6/7596 2026-07-19 19:07Z – 2026-07-21 03:59Z SFC–400 ft

  Atlanta, GA

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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