Go-around — ASA403

KSEA · 34L

2026-07-14 05:01 UTC· KSMF → KSEA· ALASKA AIRLINES INC· B739

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ASA403 (Alaska Airlines) was operating from KSMF to KSEA on 2026-07-14. SkyMeter detected a go-around at Seattle Tacoma International Airport (KSEA) on runway 34L at 05:01 UTC. Trace data at the event: 1290 ft AGL, 135 kt GS. METAR at the time reported 3 kt wind, 1 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 →
  • SECURITY6/4033 2026-06-01 07:00Z – 2026-07-21 06:59Z SFC–400 ft

    RENTON, WA, Monday, June 1, 2026 through Monday, July 20, 2026 Local

    View FAA NOTAM →
  • 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 →
  • SECURITY6/8071 2026-07-08 16:07Z – 2026-07-21 06:59Z SFC–400 ft

    PORTLAND, OR

    View FAA NOTAM →
  • SECURITY6/8074 2026-07-12 17:07Z – 2026-07-21 06:59Z SFC–400 ft

    Renton, WA

    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 34L
  • 1290 ft AGL at event
  • 135 kt ground speed
  • 0 fpm vertical
  • 3 kt wind
  • 1 kt crosswind component
  • 16,093 m visibility
  • KSEA 170553Z 04006KT 10SM CLR 18/11 A3007 RMK AO2 SLP186 T01830111 10233 20172 50000 $

Flight context

  • ASA403
  • Alaska Airlines
  • B739
  • KSMF → KSEA
  • 2026-07-14 05:01 UTC
  • KSEA runway 34L

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