Unstable approach — UAL1436

UAL1436 (United Airlines) was inbound to KDEN on 2026-07-03. SkyMeter detected a low approach-stability score at Denver International Airport (KDEN) on runway 25 at 22:21 UTC. Trace data at the event: 6502 ft AGL, 180 kt GS. Approach stability score: 40/100. 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 5 kt wind, 3 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.

• SECURITY6/4164 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

  View FAA NOTAM →
• 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

  View FAA NOTAM →
• HAZARDS6/9461 2026-06-21 12:00Z – 2026-07-04 04:00Z SFC–10,500 ft

  3.5NM SW SALT LAKE CITY, UT, Sunday, June 21, 2026 through Saturday, July 4, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/9460 2026-06-21 14:00Z – 2026-07-04 04:00Z SFC–11,000 ft

  27NM SW PROVO, UT, Sunday, June 21, 2026 through Saturday, July 4, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/9504 2026-06-21 14:14Z – 2026-07-05 15:00Z SFC–10,500 ft

  10NM NE OGDEN, UT, Sunday, June 21, 2026 through Sunday, July 5, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/9555 2026-06-22 12:00Z – 2026-07-04 04:00Z SFC–10,500 ft

  3.5NM SW SALT LAKE CITY, UT, Monday, June 22, 2026 through Saturday, July 4, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/9562 2026-06-22 12:00Z – 2026-07-04 04:00Z SFC–10,500 ft

  29NM NW TOOELE, UT, Monday, June 22, 2026 through Saturday, July 4, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/9582 2026-06-22 13:04Z – 2026-07-05 15:00Z SFC–10,500 ft

  29NM NW TOOELE, UT, Monday, June 22, 2026 through Sunday, July 5, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/9592 2026-06-22 13:29Z – 2026-07-05 15:00Z SFC–10,500 ft

  3.5NM SW SALT LAKE CITY, UT, Monday, June 22, 2026 through Sunday, July 5, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/9834 2026-06-22 19:21Z – 2026-07-05 15:00Z SFC–10,500 ft

  4NM SW SALT LAKE CITY, UT, Monday, June 22, 2026 through Sunday, July 5, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/9985 2026-06-23 13:54Z – 2026-07-07 15:00Z SFC–11,000 ft

  27NM SW PROVO, UT, Tuesday, June 23, 2026 through Tuesday, July 7, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/0276 2026-06-24 15:00Z – 2026-07-07 04:00Z SFC–10,500 ft

  4NM SW SALT LAKE CITY, UT, Wednesday, June 24, 2026 through Tuesday, July 7, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/0613 2026-06-25 13:00Z – 2026-07-08 03:00Z SFC–14,500 ft

  27NM SW JACKSON, WY, Thursday, June 25, 2026 through Wednesday, July 8, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/1019 2026-06-26 23:25Z – 2026-07-08 04:00Z SFC–11,000 ft

  27NM SW PROVO, UT, Friday, June 26, 2026 through Wednesday, July 8, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/1072 2026-06-27 14:12Z – 2026-07-10 04:00Z SFC–11,000 ft

  27NM SW PROVO, UT, Saturday, June 27, 2026 through Friday, July 10, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/1144 2026-06-28 14:00Z – 2026-07-11 04:00Z SFC–11,000 ft

  27NM SW PROVO, UT, Sunday, June 28, 2026 through Saturday, July 11, 2026 UTC

  View FAA NOTAM →
• HAZARDS6/2268 2026-07-01 13:00Z – 2026-07-14 03:00Z SFC–14,500 ft

  27NM SE JACKSON, WY, Wednesday, July 1, 2026 through Tuesday, July 14, 2026 UTC

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

  Sandy, UT

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

  Salt Lake City, UT

  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.

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