Unstable approach — N521TM

KHND · 17R

2026-07-14 21:36 UTC· KEUL → KHND· IDAHO POWER COMPANY· C550

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N521TM (Idaho Power) was operating from KEUL to KHND on 2026-07-14. SkyMeter detected a low approach-stability score at Henderson Executive Airport (KHND) on runway 17R at 21:36 UTC. Trace data at the event: 3571 ft AGL, 136 kt GS. Approach stability score: 34/100. 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, 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)
  • 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

    View FAA NOTAM →
  • HAZARDS6/2594 2026-07-02 13:00Z – 2026-07-15 04:00Z SFC–12,000 ft

    23NM S PANACA, NV, Thursday, July 2, 2026 through Wednesday, July 15, 2026 UTC

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

    Meridian, ID

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

    Boise, ID

    View FAA NOTAM →
  • 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

    View FAA NOTAM →
  • 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

    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 17R
  • 3571 ft AGL at event
  • 136 kt ground speed
  • 0 fpm vertical
  • Approach stability 34/100
  • 4 kt wind
  • 1 kt crosswind component
  • 16,093 m visibility
  • METAR KHND 280556Z AUTO 16015G20KT 10SM CLR 26/12 A2989 RMK AO2 SLP108 T02560117 10306 20256 51003 $

Flight context

  • N521TM
  • Idaho Power
  • C550
  • KEUL → KHND
  • 2026-07-14 21:36 UTC
  • KHND runway 17R

All events on this flight

Unstable approach 21:36:56 UTC · KHND runway 17R · 3,571 ft AGL · 136 kt GS
Long landing rollout 21:44:46 UTC · KHND runway 17R · 2,424 ft AGL · 0 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· KHND