Unstable approach — DAL3150

KCHA · 20

2026-07-20 23:21 UTC· KATL → KCHA· DELTA AIR LINES INC· B712

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DAL3150 (Delta AIR Lines) was operating from KATL to KCHA on 2026-07-20. SkyMeter detected a low approach-stability score at Lovell Field (KCHA) on runway 20 at 23:21 UTC. Trace data at the event: 1793 ft AGL, 145 kt GS. Approach stability score: 59/100. 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 7 kt wind, 4 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)
  • SECURITY6/3979 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    ATLANTA, GA, Monday, June 1, 2026 through Tuesday, July 21, 2026 UTC

    View FAA NOTAM →
  • SECURITY6/3980 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    CHATTANOOGA, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3990 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    CHATTANOOGA, TN, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/3991 2026-06-01 04:00Z – 2026-07-21 03:59Z SFC–400 ft

    MARIETTA, GA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/7600 2026-07-07 13:07Z – 2026-07-21 03:59Z SFC–400 ft

    Chattanooga, TN

    View FAA NOTAM →
  • SECURITY6/7597 2026-07-08 16:07Z – 2026-07-21 03:59Z SFC–400 ft

    Marietta, GA

    View FAA NOTAM →
  • SECURITY6/7596 2026-07-19 19:07Z – 2026-07-21 03:59Z SFC–400 ft

    Atlanta, GA

    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 20
  • 1793 ft AGL at event
  • 145 kt ground speed
  • 0 fpm vertical
  • Approach stability 59/100
  • 7 kt wind
  • 4 kt crosswind component
  • 16,093 m visibility
  • KCHA 161853Z 08005KT 10SM SCT048TCU SCT090 34/20 A3030 RMK AO2 SLP253 TCU W NW T03390200

Flight context

  • DAL3150
  • Delta AIR Lines
  • B712
  • KATL → KCHA
  • 2026-07-20 23:21 UTC
  • KCHA runway 20

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· KCHA