Go-around — ASA620

KSEA · 16R

2026-03-21 02:05 UTC· KSMF → KSEA· ALASKA AIRLINES INC· B738

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ASA620 (Alaska Airlines) was operating from KSMF to KSEA on 2026-03-21. SkyMeter detected a go-around at Seattle Tacoma International Airport (KSEA) on runway 16R at 02:05 UTC. Trace data at the event: 623 ft AGL, 150 kt GS. METAR at the time reported 6 kt wind, 5 kt crosswind component, 16,093 m visibility. A go-around is a discontinued landing approach in which the pilot adds power and climbs back to a safe altitude before re-attempting the approach or proceeding to an alternate. It is a routine safety response, not an emergency, and is taught as the standard reaction to any unstable approach. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • SECURITY6/3475 2026-03-08 09:00Z – 2026-11-01 09:59Z SFC–180 ft

    BEALE AFB, CA, Sunday, March 8, 2026 through Sunday, November 1, 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 16R
  • 623 ft AGL at event
  • 150 kt ground speed
  • 0 fpm vertical
  • 6 kt wind
  • 5 kt crosswind component
  • 16,093 m visibility
  • KSEA 221253Z 02006KT 10SM FEW016 BKN037 15/11 A3004 RMK AO2 SLP177 T01500111 $

Flight context

  • ASA620
  • Alaska Airlines
  • B738
  • KSMF → KSEA
  • 2026-03-21 02:05 UTC
  • KSEA runway 16R

All events on this flight

Go-around 02:05:22 UTC · KSEA runway 16R · 623 ft AGL · 150 kt GS
Go-around 02:05:24 UTC · KBFI runway 32L · 596 ft AGL · 150 kt GS
Go-around 02:05:22 UTC · KSEA runway 16R · 623 ft AGL · 150 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· KSEA