Unstable approach — UAL1311

UAL1311 (United Airlines) was operating from KFLL to KDEN on 2026-07-02. SkyMeter detected a low approach-stability score at Denver International Airport (KDEN) on runway 25 at 15:47 UTC. Trace data at the event: 6495 ft AGL, 178 kt GS. Approach stability score: 38/100. 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 4 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.

• SECURITY5/6914 2025-05-06 23:30Z – 2027-10-18 11:03Z SFC–6,000 ft

  South Padre Island, TX, Tuesday, May 6, 2025 Local

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• SECURITY5/2809 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–2,000 ft

  Palm Beach, FL, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local

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• SECURITY6/4240 2026-03-08 08:00Z – 2026-11-01 07:00Z SFC–180 ft

  SAN ANGELO, TX, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local

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• 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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• SECURITY6/4004 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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• SECURITY6/4153 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  Tampa, FL, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4150 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  Palm Beach Gardens, FL, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4144 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  FORT LAUDERDALE, FL, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4129 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  BOCA RATON, FL, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4156 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

  TAMPA, FL, 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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• SECURITY6/3968 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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• SECURITY6/3980 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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• SECURITY6/4120 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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• SECURITY6/4116 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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• SECURITY6/4155 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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• SECURITY6/4154 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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• SECURITY6/4008 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  FRISCO, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4009 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  FRISCO, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4019 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  IRVING, TX, 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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• SECURITY6/4025 2026-06-01 05:00Z – 2026-07-21 04:59Z

  DENTON, TX, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

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• SECURITY6/4030 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  AUSTIN, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4059 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  HOUSTON, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4068 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  HOUSTON, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4097 2026-06-01 05:00Z – 2026-07-21 04:59Z

  SAN ANTONIO, TX, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

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• SECURITY6/4000 2026-06-01 05:00Z – 2026-07-21 04:59Z

  MANSFIELD, TX, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

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• SECURITY6/3999 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  ARLINGTON, TX, 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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• SECURITY6/3997 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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• SECURITY6/4121 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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• SECURITY6/3952 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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• SECURITY6/4157 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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• SECURITY6/4141 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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• SECURITY6/4161 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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• SECURITY6/4146 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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• SECURITY6/4162 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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• SECURITY6/4151 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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• SECURITY6/4002 2026-06-01 05:00Z – 2026-07-21 04:59Z SFC–400 ft

  FORT WORTH, TX, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/6447 2026-06-09 05:01Z – 2026-07-20 04:59Z SFC–1,000 ft

  Houston, TX, Tuesday, June 9, 2026 through Sunday, July 19, 2026 Local

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• SECURITY6/8212 2026-06-17 04:01Z – 2026-07-17 03:59Z SFC–400 ft

  Kennesaw, GA, Wednesday, June 17, 2026 through Thursday, July 16, 2026 Local

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• SECURITY6/0782 2026-06-26 04:01Z – 2026-07-21 03:59Z SFC–400 ft

  Fort Lauderdale, FL, Friday, June 26, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/0777 2026-06-26 04:01Z – 2026-07-21 03:59Z SFC–400 ft

  Fort Lauderdale, FL, Friday, June 26, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/0854 2026-06-29 12:30Z – 2026-07-03 06:00Z SFC–2,500 ft

  MAYPORT, FL, Monday, June 29, 2026 through Friday, July 3, 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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• SECURITY6/6840 2026-06-29 15:07Z – 2026-07-21 04:59Z SFC–400 ft

  Mansfield, TX

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• SECURITY6/6842 2026-06-29 15:07Z – 2026-07-21 04:59Z SFC–400 ft

  Fort Worth, TX

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

  Nashville, TN

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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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• SECURITY6/7967 2026-07-01 16:07Z – 2026-07-21 04:59Z SFC–400 ft

  Nashville, TN

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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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• SECURITY6/6844 2026-07-01 16:07Z – 2026-07-21 04:59Z SFC–400 ft

  Frisco, TX

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• HAZARDS6/2597 2026-07-02 04:41Z – 2026-07-16 04:00Z SFC–15,000 ft

  4NM SW PUEBLO, CO, Thursday, July 2, 2026 through Thursday, July 16, 2026 UTC

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• SECURITY6/1077 2026-07-02 05:00Z – 2026-07-03 09:30Z SFC–17,999 ft

  Macon, GA, Thursday, July 2, 2026 through Friday, July 3, 2026 Local

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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