EmergencyDescent — AAL3120
2026-02-21 04:00 UTC· KDSM → KPHX· UMB BANK NA TRUSTEE· A319
AAL3120 (UMB Bank NA) was operating from KDSM to KPHX on 2026-02-21. SkyMeter detected a emergencydescent at 04:00 UTC. Trace data at the event: 29096 ft AGL, 343 kt GS. Approach stability score: 70/100. Scores in this band are observed on roughly 25% of approaches at this runway: one or more gates outside the per-runway tightest envelope, but still inside the typical operating range. METAR at the time reported 1 kt wind. Detection algorithm and known limitations: see SkyMeter methodology.
Pilot review data
- 29096 ft AGL at event
- 343 kt ground speed
- 0 fpm vertical
- Approach stability 70/100
- 1 kt wind
- 0 kt crosswind component
Flight context
- AAL3120
- UMB Bank NA
- A319
- KDSM → KPHX
- 2026-02-21 04:00 UTC
All events on this flight
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