Unstable approach — LYM414A

KDEN · 35R

2026-08-15 04:09 UTC· 3NE9 KDEN· CBG LLC· SW4

LYM414A (CBG) was operating from 3NE9 to KDEN on 2026-08-15. SkyMeter detected a low approach-stability score at Denver International Airport (KDEN) on runway 35R at 04:09 UTC. Trace data at the event: 6499 ft AGL, 181 kt GS. Approach stability score: 55/100. Scores in this band occur on roughly 10-15% of approaches at this runway, with multiple gates outside the per-runway envelope. METAR at the time reported 3 kt wind, 2 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)
  • SECURITY6/2895 2026-08-13 22:30Z – 2026-08-15 05:59Z SFC–400 ft

    DENVER, CO, Thursday, August 13, 2026 through Friday, August 14, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3625 2026-08-14 23:00Z – 2026-08-16 05:59Z SFC–400 ft

    DENVER, CO, Friday, August 14, 2026 through Saturday, August 15, 2026 Local

    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 35R
  • 6499 ft AGL at event
  • 181 kt ground speed
  • 0 fpm vertical
  • Approach stability 55/100
  • 3 kt wind
  • 2 kt crosswind component
  • 16,093 m visibility
  • KDEN 160653Z 20009KT 10SM FEW140 BKN220 16/07 A3021 RMK AO2 SLP166 T01610072 402170128

Flight context

  • LYM414A
  • CBG
  • SW4
  • 3NE9 → KDEN
  • 2026-08-15 04:09 UTC
  • KDEN runway 35R

All events on this flight

Unstable approach 04:09:22 UTC · KDEN runway 35R · 6,499 ft AGL · 181 kt GS
Unstable approach 04:09:22 UTC · KDEN runway 35R · 6,499 ft AGL · 181 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· KDEN