Unstable approach — UAL2088

KORD · 04L

2026-05-31 00:37 UTC· TJSJ → KORD· UNITED AIRLINES INC· A21N

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UAL2088 (United Airlines) was operating from TJSJ to KORD on 2026-05-31. SkyMeter detected a low approach-stability score at Chicago O'Hare International Airport (KORD) on runway 04L at 00:37 UTC. Trace data at the event: 1787 ft AGL, 119 kt GS. METAR at the time reported 11 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.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • 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

    View FAA NOTAM →
  • SECURITY5/2811 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–1,000 ft

    NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local

    View FAA NOTAM →
  • SECURITY5/2858 2025-12-26 04:59Z – 2026-07-02 03:59Z SFC–1,000 ft

    OCHOPPEE, FL, Thursday, December 25, 2025 through Wednesday, July 1, 2026 Local

    View FAA NOTAM →
  • SECURITY6/9784 2026-05-16 12:00Z – 2026-06-12 22:00Z SFC–400 ft

    Moyock, NC, Saturday, May 16, 2026 through Friday, June 12, 2026 Local

    View FAA NOTAM →
  • SECURITY6/2644 2026-05-27 11:00Z – 2026-06-12 22:00Z SFC–400 ft

    Brunswick, GA, Wednesday, May 27, 2026 through Friday, June 12, 2026 Local

    View FAA NOTAM →
  • HAZARDS6/3292 2026-05-27 17:20Z – 2026-06-10 00:15Z SFC–2,000 ft

    22NM SW TALLAHASSEE, FL, Wednesday, May 27, 2026 through Wednesday, June 10, 2026 UTC

    View FAA NOTAM →
  • SPACE OPERATIONS6/3356 2026-05-30 23:02Z – 2026-05-31 00:33Z SFC–180 ft

    Cape Canaveral, FL, Saturday, May 30, 2026 through Saturday, May 30, 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 04L
  • 1787 ft AGL at event
  • 119 kt ground speed
  • 0 fpm vertical
  • 11 kt wind
  • 0 kt crosswind component
  • 16,093 m visibility
  • KORD 170951Z 33010KT 10SM FEW050 04/M02 A3046 RMK AO2 SLP319 T00441022 $

Flight context

  • UAL2088
  • United Airlines
  • A21N
  • TJSJ → KORD
  • 2026-05-31 00:37 UTC
  • KORD runway 04L

All events on this flight

Unstable approach 00:37:36 UTC · KORD runway 04L · 1,787 ft AGL · 119 kt GS
Unstable approach 00:37:36 UTC · KORD runway 04L · 1,787 ft AGL · 119 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