Unstable approach — TKR136

KBOI · 28R

2026-08-19 04:47 UTC· CSC DELAWARE TUST CO TRUSTEE· C130

TKR136 (CSC Delaware Tust) was inbound to KBOI on 2026-08-19. SkyMeter detected a low approach-stability score at Boise Air Terminal/Gowen Field (KBOI) on runway 28R at 04:47 UTC. Trace data at the event: 3926 ft AGL, 158 kt GS. Approach stability score: 37/100. 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 1 kt wind, 9,656 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)
  • HAZARDS6/2760 2026-08-07 13:00Z – 2026-08-21 04:00Z SFC–12,500 ft

    20NM N MCCALL, ID, Friday, August 7, 2026 through Friday, August 21, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/3131 2026-08-09 15:30Z – 2026-08-23 04:00Z SFC–12,500 ft

    20NM N MCCALL, ID, Sunday, August 9, 2026 through Sunday, August 23, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/4363 2026-08-12 17:00Z – 2026-08-26 04:00Z SFC–12,500 ft

    33NM N BOISE, ID, Wednesday, August 12, 2026 through Wednesday, August 26, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/4727 2026-08-13 14:00Z – 2026-08-27 04:00Z SFC–12,500 ft

    33NM N BOISE, ID, Thursday, August 13, 2026 through Thursday, August 27, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/5073 2026-08-14 14:00Z – 2026-08-28 04:00Z SFC–12,500 ft

    33NM N BOISE, ID, Friday, August 14, 2026 through Friday, August 28, 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 28R
  • 3926 ft AGL at event
  • 158 kt ground speed
  • 0 fpm vertical
  • Approach stability 37/100
  • 1 kt wind
  • 0 kt crosswind component
  • 9,656 m visibility
  • KBOI 161453Z AUTO 15003KT 6SM HZ CLR 13/06 A3000 RMK AO2 SLP142 T01330056 53020

Flight context

  • TKR136
  • CSC Delaware Tust
  • C130
  • 2026-08-19 04:47 UTC
  • KBOI runway 28R

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· KBOI