Unstable approach — CUL549

KTRM · 35

2026-06-21 03:47 UTC· COULSON AVIATION (USA) INC· C550

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CUL549 (Coulson Aviation (USA)) was inbound to KTRM on 2026-06-21. SkyMeter detected a low approach-stability score at Jacqueline Cochran Regional Airport (KTRM) on runway 35 at 03:47 UTC. Trace data at the event: 990 ft AGL, 112 kt GS. Approach stability score: 41/100. 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 15 kt wind, 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)
  • HAZARDS6/8795 2026-06-17 15:00Z – 2026-06-29 04:00Z SFC–11,000 ft

    58NM S ST. GEORGE, UT, Wednesday, June 17, 2026 through Monday, June 29, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9269 2026-06-18 19:00Z – 2026-06-30 04:00Z SFC–11,000 ft

    39NM NW MESQUITE, NV, Thursday, June 18, 2026 through Tuesday, June 30, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9356 2026-06-20 13:00Z – 2026-07-03 04:00Z SFC–11,000 ft

    46 NM NW MESQUITE, NV, Saturday, June 20, 2026 through Friday, July 3, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/9359 2026-06-20 13:00Z – 2026-07-03 04:00Z SFC–11,000 ft

    39 NM NW MESQUITE, NV, Saturday, June 20, 2026 through Friday, July 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 35
  • 990 ft AGL at event
  • 112 kt ground speed
  • 0 fpm vertical
  • Approach stability 41/100
  • 15 kt wind
  • 0 kt crosswind component
  • 16,093 m visibility
  • KTRM 100652Z AUTO 33009KT 10SM CLR 32/09 A2958 RMK AO2 SLP018 T03170089 $

Flight context

  • CUL549
  • Coulson Aviation (USA)
  • C550
  • 2026-06-21 03:47 UTC
  • KTRM runway 35

All events on this flight

Unstable approach 03:47:11 UTC · KTRM runway 35 · 990 ft AGL · 112 kt GS
Unstable approach 03:47:11 UTC · KTRM runway 35 · 990 ft AGL · 112 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· KTRM