Unstable approach — UAL684

UAL684 (United Airlines) was operating from KIAD to KHHR on 2026-06-15. SkyMeter detected a low approach-stability score at Jack Northrop Field Hawthorne Municipal Airport (KHHR) on runway 25 at 00:34 UTC. Trace data at the event: 1177 ft AGL, 148 kt GS. METAR at the time reported 9 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.

• SECURITY6/3954 2026-06-01 00:00Z – 2026-07-20 23:59Z

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

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• 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

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• SECURITY6/4114 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  LOUISVILLE, KY, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• 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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• SECURITY6/3980 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  CHATTANOOGA, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/3990 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  CHATTANOOGA, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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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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• SECURITY6/4116 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  LOUISVILLE, KY, 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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• SECURITY6/3952 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

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• 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

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• 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

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• SECURITY6/4119 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  NASHVILLE, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4121 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  Nashville, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• 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

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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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• SECURITY6/4161 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

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• SECURITY6/4189 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  Los Angeles, CA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• 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

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• 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

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• 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

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• 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

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• 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

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• 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

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• UAS PUBLIC GATHERING6/5785 2026-06-11 18:00Z – 2026-06-15 04:00Z SFC–400 ft

  Manchester, TN, Thursday, June 11, 2026 through Monday, June 15, 2026 UTC

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• 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

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• HAZARDS6/7894 2026-06-12 14:43Z – 2026-06-25 04:00Z SFC–14,000 ft

  80NM N SILVER CITY, NM, Friday, June 12, 2026 through Thursday, June 25, 2026 UTC

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• SECURITY6/7814 2026-06-14 17:00Z – 2026-06-14 22:00Z SFC–400 ft

  HOLLYWOOD, CA, Sunday, June 14, 2026 Local

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• SECURITY6/6669 2026-06-14 18:00Z – 2026-06-14 23:00Z SFC–400 ft

  Las Vegas, NV, Sunday, June 14, 2026 Local

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• HAZARDS6/8219 2026-06-14 19:18Z – 2026-06-17 23:00Z SFC–3,000 ft

  BUTLER, MO, Sunday, June 14, 2026 through Wednesday, June 17, 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.

All events on this flight

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