Unstable approach — LRC643

KORD · 36

2026-08-07 18:29 UTC· KJFK → KORD· UMB BANK NA TRUSTEE· A20N

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LRC643 (UMB Bank NA) was operating from KJFK to KORD on 2026-08-07. SkyMeter detected a low approach-stability score at Chicago O'Hare International Airport (KORD) on runway 36 at 18:29 UTC. Trace data at the event: 1788 ft AGL, 155 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 8 kt wind, 1 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)
  • 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 →
  • SECURITY6/0708 2026-08-01 00:01Z – 2027-08-01 23:59Z SFC–400 ft

    Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC

    View FAA NOTAM →
  • SECURITY6/0929 2026-08-03 12:30Z – 2026-08-08 06:00Z SFC–2,500 ft

    MAYPORT, FL, Monday, August 3, 2026 through Saturday, August 8, 2026 Local

    View FAA NOTAM →
  • SECURITY6/1231 2026-08-05 05:00Z – 2026-08-07 09:30Z SFC–17,999 ft

    Macon, GA, Wednesday, August 5, 2026 through Friday, August 7, 2026 Local

    View FAA NOTAM →
  • SECURITY6/0879 2026-08-06 12:00Z – 2026-08-14 20:00Z SFC–2,000 ft

    Laurel, MD, Thursday, August 6, 2026 through Friday, August 14, 2026 Local

    View FAA NOTAM →
  • SECURITY6/1710 2026-08-06 21:00Z – 2026-08-10 02:00Z SFC–400 ft

    West Chester, OH, Thursday, August 6, 2026 through Sunday, August 9, 2026 Local

    View FAA NOTAM →
  • SPACE OPERATIONS6/1425 2026-08-07 06:41Z – 2026-08-07 09:31Z SFC–180 ft

    Cape Canaveral, FL, Friday, August 7, 2026 Local

    View FAA NOTAM →
  • SPACE OPERATIONS6/1438 2026-08-07 06:41Z – 2026-08-07 09:31Z SFC–180 ft

    Cape Canaveral, FL, Friday, August 7, 2026 Local

    View FAA NOTAM →
  • HAZARDS6/2145 2026-08-07 12:00Z – 2026-08-07 14:00Z SFC–2,000 ft

    BARTOW, FL, Friday, August 7, 2026 UTC

    View FAA NOTAM →
  • AIR SHOWS/SPORTS6/0958 2026-08-07 17:00Z – 2026-08-09 20:00Z SFC–5,000 ft

    Toughkenamon, PA, Friday, August 7, 2026 through Sunday, August 9, 2026 UTC

    View FAA NOTAM →
  • AIR SHOWS/SPORTS6/0960 2026-08-07 17:00Z – 2026-08-09 20:00Z SFC–5,000 ft

    Toughkenamon, PA, Friday, August 7, 2026 through Sunday, August 9, 2026 UTC

    View FAA NOTAM →
  • AIR SHOWS/SPORTS6/1036 2026-08-07 17:00Z – 2026-08-09 20:00Z SFC–5,000 ft

    Toughkenamon, PA, Friday, August 7, 2026 through Sunday, August 9, 2026 UTC

    View FAA NOTAM →
  • AIR SHOWS/SPORTS6/1037 2026-08-07 17:00Z – 2026-08-09 20:00Z SFC–5,000 ft

    Toughkenamon, PA, Friday, August 7, 2026 through Sunday, August 9, 2026 UTC

    View FAA NOTAM →
  • SECURITY6/2686 2026-08-07 18:00Z – 2026-08-09 03:59Z SFC–400 ft

    East Rutherford, NJ, Friday, August 7, 2026 through Saturday, August 8, 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
  • 1788 ft AGL at event
  • 155 kt ground speed
  • 0 fpm vertical
  • Approach stability 40/100
  • 8 kt wind
  • 1 kt crosswind component
  • 16,093 m visibility
  • KORD 160451Z 35006KT 10SM SCT100 BKN250 22/19 A3018 RMK AO2 SLP215 T02220194 $

Flight context

  • LRC643
  • UMB Bank NA
  • A20N
  • KJFK → KORD
  • 2026-08-07 18:29 UTC
  • KORD runway 36

All events on this flight

Unstable approach 18:29:18 UTC · KORD runway 36 · 1,788 ft AGL · 155 kt GS
Diversion 18:38:58 UTC · KORD runway 36 · 0 ft AGL · 0 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