Unstable approach — CNK91

CNK91 (Sunwest Aviation) was operating from KGEG to KAPC on 2026-07-08. SkyMeter detected a low approach-stability score at Napa County Airport (KAPC) on runway 19R at 19:13 UTC. Trace data at the event: 1132 ft AGL, 127 kt GS. Approach stability score: 48/100. 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 5 kt wind, 4 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.

• SECURITY6/3475 2026-03-08 09:00Z – 2026-11-01 09:59Z SFC–180 ft

  BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local

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• SECURITY6/5797 2026-04-03 00:01Z – 2026-09-28 23:59Z SFC–400 ft

  SACRAMENTO, CA, Thursday, April 2, 2026 through Monday, September 28, 2026 Local

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• SECURITY6/4011 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  BELLEVUE, WA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4033 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  RENTON, WA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• SECURITY6/4034 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

  Renton, WA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

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• HAZARDS6/1247 2026-06-28 22:17Z – 2026-07-10 16:00Z SFC–5,500 ft

  7NM NW THE DALLES, OR, Sunday, June 28, 2026 through Friday, July 10, 2026 UTC

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• HAZARDS6/1675 2026-06-29 21:09Z – 2026-07-13 04:00Z SFC–6,000 ft

  75 ZSE AIRSPACE 13NM SE PASCO, WA, Monday, June 29, 2026 through Monday, July 13, 2026 UTC

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• HAZARDS6/1598 2026-06-30 15:00Z – 2026-07-11 23:00Z SFC–5,500 ft

  7NM NW THE DALLES, OR, Tuesday, June 30, 2026 through Saturday, July 11, 2026 UTC

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• HAZARDS6/1787 2026-06-30 15:00Z – 2026-07-14 04:00Z SFC–6,000 ft

  13NM SE PASCO, WA, Tuesday, June 30, 2026 through Tuesday, July 14, 2026 UTC

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• HAZARDS6/2839 2026-07-03 22:52Z – 2026-07-11 03:00Z SFC–6,000 ft

  5NM NE THE DALLES, OR, Friday, July 3, 2026 through Saturday, July 11, 2026 UTC

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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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• HAZARDS6/3000 2026-07-05 20:27Z – 2026-07-13 05:00Z SFC–8,000 ft

  3NM E WENATCHEE, WA, Sunday, July 5, 2026 through Monday, July 13, 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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• HAZARDS6/3024 2026-07-06 15:00Z – 2026-07-13 05:00Z SFC–8,000 ft

  3NM E WENATCHEE, WA, Monday, July 6, 2026 through Monday, July 13, 2026 UTC

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• HAZARDS6/3244 2026-07-06 23:59Z – 2026-07-09 04:00Z SFC–10,000 ft

  17NM NE WINNEMUCCA, NV, Monday, July 6, 2026 through Thursday, July 9, 2026 UTC

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• HAZARDS6/3388 2026-07-07 14:00Z – 2026-07-21 04:00Z SFC–10,000 ft

  17NM NE WINNEMUCCA, NV, Tuesday, July 7, 2026 through Tuesday, July 21, 2026 UTC

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• HAZARDS6/3783 2026-07-08 01:08Z – 2026-07-22 05:00Z SFC–10,000 ft

  40NM NW BASQUE, OR, Wednesday, July 8, 2026 through Wednesday, July 22, 2026 UTC

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• HAZARDS6/3798 2026-07-08 01:35Z – 2026-07-22 05:00Z SFC–10,000 ft

  40NM NW BASQUE, OR, Wednesday, July 8, 2026 through Wednesday, July 22, 2026 UTC

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• HAZARDS6/3807 2026-07-08 15:00Z – 2026-07-22 15:00Z SFC–9,000 ft

  10NM SE FALL RIVER MILLS, CA, Wednesday, July 8, 2026 through Wednesday, July 22, 2026 UTC

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• HAZARDS6/4014 2026-07-08 16:17Z – 2026-07-22 15:00Z SFC–9,000 ft

  10NM SE FALL RIVER MILLS, CA, Wednesday, July 8, 2026 through Wednesday, July 22, 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.

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