Go-around — ASA1139
KSEA · 34L2025-10-22 04:34 UTC· KSBA → KSEA· ALASKA AIRLINES INC· B739
ASA1139 (Alaska Airlines) was operating from KSBA to KSEA on 2025-10-22. SkyMeter detected a go-around at Seattle Tacoma International Airport (KSEA) on runway 34L at 04:34 UTC. Trace data at the event: 583 ft AGL, 133 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.
Pilot review data
- Runway 34L
- 583 ft AGL at event
- 133 kt ground speed
- 0 fpm vertical
- 3 kt wind
- 1 kt crosswind component
- 16,093 m visibility
- METAR KSEA 271653Z 01014KT 10SM FEW020 BKN200 12/08 A3007 RMK AO2 SLP190 T01170083 $
Flight context
- ASA1139
- Alaska Airlines
- B739
- KSBA → KSEA
- 2025-10-22 04:34 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