Unstable approach — DAL1256

KDET · 15

2026-07-22 12:49 UTC· KMCI KDET· DELTA AIR LINES INC· B712

DAL1256 (Delta AIR Lines) was operating from KMCI to KDET on 2026-07-22. SkyMeter detected a low approach-stability score at Coleman A. Young Municipal Airport (KDET) on runway 15 at 12:49 UTC. Trace data at the event: 1744 ft AGL, 141 kt GS. Approach stability score: 42/100. 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 9 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.

Pilot review data

  • Runway 15
  • 1744 ft AGL at event
  • 141 kt ground speed
  • 0 fpm vertical
  • Approach stability 42/100
  • 9 kt wind
  • 0 kt crosswind component
  • 16,093 m visibility
  • KDET 121953Z 24017G25KT 10SM SCT023 26/19 A2983 RMK AO2 PK WND 25028/1926 LTG DSNT S SLP097 T02560194

Flight context

  • DAL1256
  • Delta AIR Lines
  • B712
  • KMCI → KDET
  • 2026-07-22 12:49 UTC
  • KDET runway 15

All events on this flight

Unstable approach 12:49:53 UTC · KDET runway 15 · 1,744 ft AGL · 141 kt GS
Diversion 12:54:02 UTC · KDET runway 15 · 625 ft AGL · 120 kt GS
Unstable approach 12:49:53 UTC · KDET runway 15 · 1,744 ft AGL · 141 kt GS
Diversion 12:54:02 UTC · KDET runway 15 · 625 ft AGL · 120 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· KDET