Unstable approach — AAL166

KJFK · 13L

2026-04-27 03:43 UTC· AMERICAN AIRLINES INC· A321

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AAL166 (American Airlines) was inbound to KJFK on 2026-04-27. SkyMeter detected a low approach-stability score at John F Kennedy International Airport (KJFK) on runway 13L at 03:43 UTC. Trace data at the event: 1116 ft AGL, 136 kt GS. Approach stability score: 50/100. Scores in this band occur on roughly 10-15% of approaches at this runway, with multiple gates outside the per-runway envelope. METAR at the time reported 6 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)
  • 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 →

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 13L
  • 1116 ft AGL at event
  • 136 kt ground speed
  • 0 fpm vertical
  • Approach stability 50/100
  • 6 kt wind
  • 2 kt crosswind component
  • 16,093 m visibility
  • KJFK 161651Z 21010KT 10SM FEW080 BKN160 BKN250 24/16 A3034 RMK AO2 SLP275 T02390156 $

Flight context

  • AAL166
  • American Airlines
  • A321
  • 2026-04-27 03:43 UTC
  • KJFK runway 13L

All events on this flight

Unstable approach 03:43:10 UTC · KJFK runway 13L · 1,116 ft AGL · 136 kt GS
Unstable approach 03:43:10 UTC · KJFK runway 13L · 1,116 ft AGL · 136 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· KJFK