Unstable approach — AAL2303

KBOS · 33L

2026-07-20 23:02 UTC· KORD → KBOS· AMERICAN AIRLINES INC· B738

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AAL2303 (American Airlines) was operating from KORD to KBOS on 2026-07-20. SkyMeter detected a low approach-stability score at General Edward Lawrence Logan International Airport (KBOS) on runway 33L at 23:02 UTC. Trace data at the event: 1129 ft AGL, 147 kt GS. Approach stability score: 42/100. 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 13 kt wind, 12 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)
  • SECURITY6/3959 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    Boston, MA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3963 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    FOXBOROUGH, MA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3969 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    Waltham, MA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/7082 2026-07-19 19:07Z – 2026-07-21 03:59Z SFC–400 ft

    Waltham, MA

    View FAA NOTAM →
  • SECURITY6/7083 2026-07-19 19:07Z – 2026-07-21 03:59Z SFC–400 ft

    Boston, MA

    View FAA NOTAM →
  • SECURITY6/7084 2026-07-19 19:07Z – 2026-07-21 03:59Z SFC–400 ft

    Foxborough, MA

    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 33L
  • 1129 ft AGL at event
  • 147 kt ground speed
  • 0 fpm vertical
  • Approach stability 42/100
  • 13 kt wind
  • 12 kt crosswind component
  • 16,093 m visibility
  • KBOS 161454Z 23010KT 10SM FEW150 FEW250 22/13 A3033 RMK AO2 SLP270 T02170128 58005

Flight context

  • AAL2303
  • American Airlines
  • B738
  • KORD → KBOS
  • 2026-07-20 23:02 UTC
  • KBOS runway 33L

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· KBOS