Unstable approach — UAL2135

KORD · 36

2026-06-13 00:46 UTC· KIAH → KORD· UNITED AIRLINES INC· B739

UAL2135 (United Airlines) was operating from KIAH to KORD on 2026-06-13. SkyMeter detected a low approach-stability score at Chicago O'Hare International Airport (KORD) on runway 36 at 00:46 UTC. Trace data at the event: 1795 ft AGL, 146 kt GS. METAR at the time reported 7 kt wind, 7 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.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • 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

    View FAA NOTAM →
  • 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

    View FAA NOTAM →
  • 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

    View FAA NOTAM →
  • 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

    View FAA NOTAM →
  • 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

    View FAA NOTAM →
  • 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

    View FAA NOTAM →
  • 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

    View FAA NOTAM →
  • 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

    View FAA NOTAM →
  • SECURITY6/6444 2026-06-09 05:01Z – 2026-06-28 04:59Z SFC–1,000 ft

    Kansas City, MO, Tuesday, June 9, 2026 through Saturday, June 27, 2026 Local

    View FAA NOTAM →
  • AIR SHOWS/SPORTS6/6635 2026-06-12 23:30Z – 2026-06-14 01:50Z SFC–5,500 ft

    SUNSET, LA, Friday, June 12, 2026 through Sunday, June 14, 2026 UTC

    View FAA NOTAM →
  • AIR SHOWS/SPORTS6/6636 2026-06-12 23:30Z – 2026-06-14 01:50Z SFC–5,500 ft

    Sunset, LA, Friday, June 12, 2026 through Sunday, June 14, 2026 UTC

    View FAA NOTAM →
  • SECURITY6/6781 2026-06-12 23:30Z – 2026-06-13 04:00Z SFC–400 ft

    Chicago, IL, Friday, June 12, 2026 through Friday, June 12, 2026 Local

    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.

Pilot review data

  • Runway 36
  • 1795 ft AGL at event
  • 146 kt ground speed
  • 0 fpm vertical
  • 7 kt wind
  • 7 kt crosswind component
  • 16,093 m visibility
  • KORD 122351Z 20009KT 10SM BKN250 28/16 A2974 RMK AO2 SLP065 T02830156 10311 20283 57002 $

Flight context

  • UAL2135
  • United Airlines
  • B739
  • KIAH → KORD
  • 2026-06-13 00:46 UTC
  • KORD runway 36

All events on this flight

Unstable approach 00:46:06 UTC · KORD runway 36 · 1,795 ft AGL · 146 kt GS
Unstable approach 00:46:06 UTC · KORD runway 36 · 1,795 ft AGL · 146 kt GS

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

SkyMeter · trace data observed via ADS-B· KORD