Unstable approach — UAL2156

UAL2156 (United Airlines) was operating from KIAD to KLAS on 2026-07-01. SkyMeter detected a low approach-stability score at McCarran International Airport (KLAS) on runway 19L at 21:37 UTC. Trace data at the event: 3278 ft AGL, 154 kt GS. Approach stability score: 45/100. 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, 6 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.

• SECURITY6/3954 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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• SECURITY6/4116 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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• SECURITY6/4114 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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• SECURITY6/4005 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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• SECURITY6/3971 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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• SECURITY6/3970 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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• SECURITY6/3968 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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• SECURITY6/4161 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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• SECURITY6/4157 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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• SECURITY6/4119 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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• SECURITY6/3952 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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• HAZARDS6/9359 2026-06-20 13:00Z – 2026-07-03 04:00Z SFC–11,000 ft

  39 NM NW MESQUITE, NV, Saturday, June 20, 2026 through Friday, July 3, 2026 UTC

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• HAZARDS6/9356 2026-06-20 13:00Z – 2026-07-03 04:00Z SFC–11,000 ft

  46 NM NW MESQUITE, NV, Saturday, June 20, 2026 through Friday, July 3, 2026 UTC

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• HAZARDS6/9458 2026-06-21 13:00Z – 2026-07-04 04:00Z SFC–12,000 ft

  37NM NW MESQUITE, NV, Sunday, June 21, 2026 through Saturday, July 4, 2026 UTC

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• HAZARDS6/9457 2026-06-21 13:00Z – 2026-07-04 04:00Z SFC–12,000 ft

  39 NM NW MESQUITE, NV, Sunday, June 21, 2026 through Saturday, July 4, 2026 UTC

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• HAZARDS6/9981 2026-06-23 13:28Z – 2026-07-07 15:00Z SFC–13,500 ft

  3NM E BEAVER, UT, Tuesday, June 23, 2026 through Tuesday, July 7, 2026 UTC

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• HAZARDS6/0134 2026-06-23 17:52Z – 2026-07-07 04:00Z SFC–13,500 ft

  3NM E BEAVER, UT, Tuesday, June 23, 2026 through Tuesday, July 7, 2026 UTC

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• HAZARDS6/0416 2026-06-24 14:54Z – 2026-07-07 04:00Z SFC–13,500 ft

  3NM E BEAVER, UT, Wednesday, June 24, 2026 through Tuesday, July 7, 2026 UTC

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• 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

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• 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

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• 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

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• 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

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• 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

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• HAZARDS6/1220 2026-06-28 16:15Z – 2026-07-11 04:00Z SFC–15,500 ft

  3NM E BEAVER, UT, Sunday, June 28, 2026 through Saturday, July 11, 2026 UTC

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• HAZARDS6/1334 2026-06-29 12:00Z – 2026-07-13 04:00Z SFC–12,000 ft

  25NM W GRAND JUNCTION, CO, Monday, June 29, 2026 through Monday, July 13, 2026 UTC

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• 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

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• 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

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• 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

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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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• 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

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• 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

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• HAZARDS6/1726 2026-06-29 22:46Z – 2026-07-02 04:00Z SFC–12,000 ft

  19NM N LINCOLN COUNTY, NV, Monday, June 29, 2026 through Thursday, July 2, 2026 UTC

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• HAZARDS6/1727 2026-06-29 22:51Z – 2026-07-02 04:00Z SFC–12,000 ft

  19NM N LINCOLN COUNTY, NV, Monday, June 29, 2026 through Thursday, July 2, 2026 UTC

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• HAZARDS6/1775 2026-06-30 06:00Z – 2026-07-14 04:00Z SFC–15,000 ft

  4NM SW PUEBLO, CO, Tuesday, June 30, 2026 through Tuesday, July 14, 2026 UTC

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• HAZARDS6/1778 2026-06-30 14:00Z – 2026-07-13 04:00Z SFC–16,000 ft

  16NM W MONTICELLO, UT, Tuesday, June 30, 2026 through Monday, July 13, 2026 UTC

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• HAZARDS6/2312 2026-07-01 04:00Z – 2026-07-15 04:00Z SFC–14,000 ft

  20NM W WALSENBURG, CO, Wednesday, July 1, 2026 through Wednesday, July 15, 2026 UTC

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• SECURITY6/7972 2026-07-01 16:07Z – 2026-07-21 04:59Z SFC–400 ft

  Nashville, TN

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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