Unstable approach — ENY3815

KORD · 22R

2026-09-04 23:19 UTC· KCMH KORD· AMERICAN AIRLINES INC· E170

ENY3815 (American Airlines) was operating from KCMH to KORD on 2026-09-04. SkyMeter detected a low approach-stability score at Chicago O'Hare International Airport (KORD) on runway 22R at 23:19 UTC. Trace data at the event: 1782 ft AGL, 146 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 10 kt wind, 2 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)
  • UAS PUBLIC GATHERING6/8809 2026-09-03 21:00Z – 2026-09-05 04:30Z SFC–400 ft

    Chicago, IL, Thursday, September 3, 2026 through Saturday, September 5, 2026 UTC

    View FAA NOTAM →
  • UAS PUBLIC GATHERING6/9749 2026-09-04 23:00Z – 2026-09-05 03:00Z SFC–400 ft

    South Bend, IN, Friday, September 4, 2026 through Saturday, September 5, 2026 UTC

    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 22R
  • 1782 ft AGL at event
  • 146 kt ground speed
  • 0 fpm vertical
  • Approach stability 38/100
  • 10 kt wind
  • 2 kt crosswind component
  • 16,093 m visibility
  • KORD 161751Z 36007KT 10SM FEW025 FEW036 BKN130 BKN250 24/18 A3029 RMK AO2 SLP254 60000 T02440178 10244 20178 58000 $

Flight context

  • ENY3815
  • American Airlines
  • E170
  • KCMH → KORD
  • 2026-09-04 23:19 UTC
  • KORD runway 22R

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