Go-around — ASA339

KSEA · 34L

2026-03-30 04:22 UTC· KAUS → KSEA· ALASKA AIRLINES INC· B39M

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ASA339 (Alaska Airlines) was operating from KAUS to KSEA on 2026-03-30. SkyMeter detected a go-around at Seattle Tacoma International Airport (KSEA) on runway 34L at 04:22 UTC. Trace data at the event: 505 ft AGL, 152 kt GS. METAR at the time reported 4 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)
  • SECURITY5/0601 2025-11-30 19:00Z – 2026-05-31 18:59Z SFC–400 ft

    Los Angeles, CA, Sunday, November 30, 2025 through Sunday, May 31, 2026 Local

    View FAA NOTAM →
  • SECURITY6/0091 2026-01-04 00:01Z – 2026-07-04 23:59Z SFC–500 ft

    Coyote Wells, CA, Saturday, January 3, 2026 through Saturday, July 4, 2026 Local

    View FAA NOTAM →
  • SECURITY6/0092 2026-01-04 00:01Z – 2026-07-04 23:59Z SFC–500 ft

    CALEXICO, CA, Saturday, January 3, 2026 through Saturday, July 4, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4165 2026-02-14 07:00Z – 2026-08-15 06:59Z SFC–400 ft

    Nogales, AZ, Saturday, February 14, 2026 through Friday, August 14, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4160 2026-02-14 08:00Z – 2026-08-15 06:59Z SFC–400 ft

    Chula Vista, CA, Saturday, February 14, 2026 through Friday, August 14, 2026 Local

    View FAA NOTAM →
  • SECURITY6/4240 2026-03-08 08:00Z – 2026-11-01 07:00Z SFC–180 ft

    SAN ANGELO, TX, Sunday, March 8, 2026 through Sunday, November 1, 2026 Local

    View FAA NOTAM →
  • 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 34L
  • 505 ft AGL at event
  • 152 kt ground speed
  • 0 fpm vertical
  • 4 kt wind
  • 1 kt crosswind component
  • 16,093 m visibility
  • KSEA 211653Z VRB03KT 10SM FEW006 BKN230 15/12 A3002 RMK AO2 SLP172 T01500117 $

Flight context

  • ASA339
  • Alaska Airlines
  • B39M
  • KAUS → KSEA
  • 2026-03-30 04:22 UTC
  • KSEA runway 34L

All events on this flight

Go-around 04:22:52 UTC · KSEA runway 34L · 505 ft AGL · 152 kt GS
Go-around 04:22:52 UTC · KSEA runway 34L · 505 ft AGL · 152 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