Unstable approach — N4WU

N4WU (Was-Up) was operating from KBOI to KPSC on 2026-07-17. SkyMeter detected a low approach-stability score at Tri Cities Airport (KPSC) on runway 21R at 21:44 UTC. Trace data at the event: 1478 ft AGL, 117 kt GS. Approach stability score: 44/100. 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 9 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.

• SECURITY6/4158 2026-06-01 06:00Z – 2026-07-21 05:59Z SFC–400 ft

  MERIDIAN, ID, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4159 2026-06-01 06:00Z – 2026-07-21 05:59Z SFC–400 ft

  Boise, ID, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• HAZARDS6/2989 2026-07-05 17:35Z – 2026-07-20 05:00Z SFC–7,000 ft

  15NM E PENDLETON, OR, Sunday, July 5, 2026 through Monday, July 20, 2026 UTC

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• HAZARDS6/3022 2026-07-06 14:00Z – 2026-07-20 05:00Z SFC–8,000 ft

  15NM E PENDLETON, OR, Monday, July 6, 2026 through Monday, July 20, 2026 UTC

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• SECURITY6/7869 2026-07-09 11:07Z – 2026-07-21 05:59Z SFC–400 ft

  Meridian, ID

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• SECURITY6/7871 2026-07-09 11:07Z – 2026-07-21 05:59Z SFC–400 ft

  Boise, ID

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• HAZARDS6/4238 2026-07-09 13:00Z – 2026-07-23 05:00Z SFC–11,000 ft

  25 NM NE JOHN DAY, OR, Thursday, July 9, 2026 through Thursday, July 23, 2026 UTC

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• HAZARDS6/4242 2026-07-09 13:00Z – 2026-07-23 05:00Z SFC–11,000 ft

  25 NM NE JOHN DAY, OR, Thursday, July 9, 2026 through Thursday, July 23, 2026 UTC

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• HAZARDS6/4239 2026-07-09 14:00Z – 2026-07-23 05:00Z SFC–11,500 ft

  20NM NW BAKER CITY, OR, Thursday, July 9, 2026 through Thursday, July 23, 2026 UTC

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• HAZARDS6/4241 2026-07-09 14:00Z – 2026-07-23 05:00Z SFC–11,500 ft

  20NM NW BAKER CITY, OR, Thursday, July 9, 2026 through Thursday, July 23, 2026 UTC

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• HAZARDS6/4548 2026-07-10 14:00Z – 2026-07-24 05:00Z SFC–11,500 ft

  20NM NW BAKER CITY, OR, Friday, July 10, 2026 through Friday, July 24, 2026 UTC

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• HAZARDS6/4549 2026-07-10 14:00Z – 2026-07-24 05:00Z SFC–11,500 ft

  20NM NW BAKER CITY, OR, Friday, July 10, 2026 through Friday, July 24, 2026 UTC

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• HAZARDS6/4908 2026-07-11 14:00Z – 2026-07-25 04:00Z SFC–8,000 ft

  35NM E LEWISTON, ID, Saturday, July 11, 2026 through Saturday, July 25, 2026 UTC

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• HAZARDS6/4968 2026-07-12 15:00Z – 2026-07-27 05:00Z SFC–11,000 ft

  25 NM NE JOHN DAY, OR, Sunday, July 12, 2026 through Monday, July 27, 2026 UTC

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• HAZARDS6/4970 2026-07-12 15:00Z – 2026-07-27 05:00Z SFC–11,000 ft

  25 NM NE JOHN DAY, OR, Sunday, July 12, 2026 through Monday, July 27, 2026 UTC

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• HAZARDS6/5879 2026-07-15 14:00Z – 2026-07-28 05:00Z SFC–11,500 ft

  20NM NW BAKER CITY, OR, Wednesday, July 15, 2026 through Tuesday, July 28, 2026 UTC

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• HAZARDS6/5880 2026-07-15 14:00Z – 2026-07-29 05:00Z SFC–11,500 ft

  20NM NW BAKER CITY, OR, Wednesday, July 15, 2026 through Wednesday, July 29, 2026 UTC

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• HAZARDS6/6536 2026-07-17 21:00Z – 2026-08-01 04:00Z SFC–8,000 ft

  23NM NE PENDLETON, OR, Friday, July 17, 2026 through Saturday, August 1, 2026 UTC

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• HAZARDS6/6537 2026-07-17 21:00Z – 2026-08-01 04:00Z SFC–9,000 ft

  14NM E WALLA WALLA, WA, Friday, July 17, 2026 through Saturday, August 1, 2026 UTC

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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.

All events on this flight

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