Unstable approach — XCN81

XCN81 (Usda Forest Service) was operating from KOGD to KRDM on 2026-07-20. SkyMeter detected a low approach-stability score at Roberts Field (KRDM) on runway 5 at 03:56 UTC. Trace data at the event: 4143 ft AGL, 134 kt GS. Approach stability score: 43/100. 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 4 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.

• SECURITY6/4158 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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• HAZARDS6/3388 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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• HAZARDS6/3825 2026-07-08 14:00Z – 2026-07-22 05:00Z SFC–9,500 ft

  4NM NE BOISE, ID, Wednesday, July 8, 2026 through Wednesday, July 22, 2026 UTC

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

  Meridian, ID

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• HAZARDS6/4555 2026-07-10 14:00Z – 2026-07-23 04:00Z SFC–10,500 ft

  44NM NE WELLS, NV, Friday, July 10, 2026 through Thursday, July 23, 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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• HAZARDS6/5155 2026-07-13 13:00Z – 2026-07-26 04:00Z SFC–11,000 ft

  40NM NE WELLS, NV, Monday, July 13, 2026 through Sunday, July 26, 2026 UTC

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• HAZARDS6/6100 2026-07-16 14:00Z – 2026-07-30 04:00Z SFC–10,000 ft

  41NM SE BURNS, OR, Thursday, July 16, 2026 through Thursday, July 30, 2026 UTC

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• HAZARDS6/6408 2026-07-17 04:31Z – 2026-07-31 04:00Z SFC–9,000 ft

  10NM SW CULVER, OR, Friday, July 17, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6453 2026-07-17 15:04Z – 2026-08-01 04:00Z SFC–9,000 ft

  26NM NW RILEY, OR, Friday, July 17, 2026 through Saturday, August 1, 2026 UTC

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• HAZARDS6/6454 2026-07-17 15:06Z – 2026-07-31 04:00Z SFC–9,000 ft

  10NM N RILEY, OR, Friday, July 17, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6458 2026-07-17 15:40Z – 2026-08-01 04:00Z SFC–9,000 ft

  9NM E MADRAS, OR, Friday, July 17, 2026 through Saturday, August 1, 2026 UTC

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• HAZARDS6/6572 2026-07-18 03:14Z – 2026-07-31 04:00Z SFC–11,000 ft

  18NM SE PRINEVILLE, OR, Saturday, July 18, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6695 2026-07-18 20:09Z – 2026-07-31 04:00Z SFC–9,000 ft

  12NM SE MADRAS, OR, Saturday, July 18, 2026 through Friday, July 31, 2026 UTC

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• HAZARDS6/6734 2026-07-19 01:25Z – 2026-08-01 04:00Z SFC–9,000 ft

  26NM E MADRAS, OR, Sunday, July 19, 2026 through Saturday, August 1, 2026 UTC

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• HAZARDS6/6757 2026-07-19 16:07Z – 2026-08-02 04:00Z SFC–9,000 ft

  12NM SE MADRAS, OR, Sunday, July 19, 2026 through Sunday, August 2, 2026 UTC

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• HAZARDS6/6766 2026-07-19 17:32Z – 2026-07-26 04:00Z SFC–13,000 ft

  5NM N HAILEY, ID, Sunday, July 19, 2026 through Sunday, July 26, 2026 UTC

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• HAZARDS6/6778 2026-07-19 19:09Z – 2026-08-03 03:00Z SFC–8,000 ft

  1NM S FOSSIL, OR, Sunday, July 19, 2026 through Monday, August 3, 2026 UTC

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• HAZARDS6/6812 2026-07-19 23:08Z – 2026-08-03 03:00Z SFC–11,000 ft

  23NM SE PRINEVILLE, OR, Sunday, July 19, 2026 through Monday, August 3, 2026 UTC

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• HAZARDS6/6855 2026-07-20 01:34Z – 2026-08-03 03:00Z SFC–11,000 ft

  45NM NW BURNS, OR, Monday, July 20, 2026 through Monday, August 3, 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