EmergencyDescent — ASA1321

2026-06-06 21:21 UTC· KSEA → KSTS· ALASKA AIRLINES INC· B38M

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ASA1321 (Alaska Airlines) was operating from KSEA to KSTS on 2026-06-06. SkyMeter detected a emergencydescent at 21:21 UTC. Trace data at the event: 33012 ft AGL, 420 kt GS. Approach stability score: 90/100. Scores in this band are observed on roughly 50% of approaches at this runway and represent the centerline of normal operations. METAR at the time reported 7 kt wind, 7 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • SECURITY6/4040 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

    Portland, OR, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4041 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

    PORTLAND, OR, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • HAZARDS6/5042 2026-06-02 19:48Z – 2026-06-16 23:59Z SFC–1,000 ft

    LONGVIEW, WA, Tuesday, June 2, 2026 through Tuesday, June 16, 2026 UTC

    View FAA NOTAM →
  • HAZARDS6/5717 2026-06-04 19:29Z – 2026-06-16 23:59Z SFC–1,000 ft

    LONGVIEW, WA, Thursday, June 4, 2026 through Tuesday, June 16, 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

  • 33012 ft AGL at event
  • 420 kt ground speed
  • 0 fpm vertical
  • Approach stability 90/100
  • 7 kt wind
  • 7 kt crosswind component

Flight context

  • ASA1321
  • Alaska Airlines
  • B38M
  • KSEA → KSTS
  • 2026-06-06 21:21 UTC

All events on this flight

EmergencyDescent 21:21:48 UTC · · 33,012 ft AGL · 420 kt GS
EmergencyDescent 21:21:48 UTC · · 33,012 ft AGL · 420 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