Unstable approach — N559JS

KSPB · 33

2026-08-30 22:48 UTC· KTTD → KSPB· REARDON DONALD R· GLST

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N559JS (Reardon Donald R) was operating from KTTD to KSPB on 2026-08-30. SkyMeter detected a low approach-stability score at Scappoose Industrial Airpark (KSPB) on runway 33 at 22:48 UTC. Trace data at the event: 632 ft AGL, 88 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 6 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)
  • HAZARDS6/7022 2026-08-21 17:45Z – 2026-09-03 04:00Z SFC–9,000 ft

    24NM NE VANCOUVER, WA, Friday, August 21, 2026 through Thursday, September 3, 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 33
  • 632 ft AGL at event
  • 88 kt ground speed
  • 0 fpm vertical
  • Approach stability 38/100
  • 6 kt wind
  • 1 kt crosswind component
  • 16,093 m visibility
  • METAR KSPB 312353Z AUTO 10004KT 10SM CLR 31/06 A2971 RMK AO2 SLP061 T03060061 10306 20217 56017 $

Flight context

  • N559JS
  • Reardon Donald R
  • GLST
  • KTTD → KSPB
  • 2026-08-30 22:48 UTC
  • KSPB runway 33

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· KSPB