Unstable approach — N424JG

KAPC · 19R

2026-05-23 16:19 UTC· KLGB → KAPC· LECONTE LLC· FA7X

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N424JG (Leconte) was operating from KLGB to KAPC on 2026-05-23. SkyMeter detected a low approach-stability score at Napa County Airport (KAPC) on runway 19R at 16:19 UTC. Trace data at the event: 1134 ft AGL, 133 kt GS. Approach stability score: 55/100. 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 11 kt wind, 6 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)
  • SECURITY5/0601 2025-11-30 19:00Z – 2026-05-31 18:59Z SFC–400 ft

    Los Angeles, CA, Sunday, November 30, 2025 through Sunday, May 31, 2026 Local

    View FAA NOTAM →
  • SECURITY6/0758 2026-05-18 07:01Z – 2026-05-31 06:59Z SFC–1,499 ft

    Concord, CA, Monday, May 18, 2026 through Saturday, May 30, 2026 Local

    View FAA NOTAM →
  • HAZARDS6/1359 2026-05-18 20:54Z – 2026-05-31 16:00Z SFC–6,000 ft

    3NM S SIMI VALLEY, CA, Monday, May 18, 2026 through Sunday, May 31, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/1376 2026-05-19 02:58Z – 2026-05-31 15:00Z SFC–6,000 ft

    3NM S SIMI VALLEY, CA, Tuesday, May 19, 2026 through Sunday, May 31, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/2557 2026-05-23 15:46Z – 2026-05-24 18:00Z SFC–8,000 ft

    32NM SW SANTA BARBARA, CA, Saturday, May 23, 2026 through Sunday, May 24, 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 19R
  • 1134 ft AGL at event
  • 133 kt ground speed
  • 0 fpm vertical
  • Approach stability 55/100
  • 11 kt wind
  • 6 kt crosswind component
  • 16,093 m visibility
  • SPECI KAPC 201924Z 03007KT 10SM CLR 19/06 A2991 RMK AO2 T01940061

Flight context

  • N424JG
  • Leconte
  • FA7X
  • KLGB → KAPC
  • 2026-05-23 16:19 UTC
  • KAPC runway 19R

All events on this flight

Unstable approach 16:19:09 UTC · KAPC runway 19R · 1,134 ft AGL · 133 kt GS
Unstable approach 16:19:09 UTC · KAPC runway 19R · 1,134 ft AGL · 133 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· KAPC