Go-around — ASA634
KSFO · 28R2025-12-20 02:47 UTC· KLAS → KSFO· ALASKA AIRLINES INC· B39M
ASA634 (Alaska Airlines) was operating from KLAS to KSFO on 2025-12-20. SkyMeter detected a go-around at San Francisco International Airport (KSFO) on runway 28R at 02:47 UTC. Trace data at the event: 286 ft AGL, 151 kt GS, 0 fpm vertical. METAR at the time reported 5 kt wind, 4 kt crosswind component, 11,265 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 28R
- 286 ft AGL at event
- 151 kt ground speed
- 0 fpm vertical
- 5 kt wind
- 4 kt crosswind component
- 11,265 m visibility
- METAR KSFO 251156Z 27013KT 7SM FEW002 BKN004 17/16 A2997 RMK AO2 SLP147 T01670156 10172 20161 53003 $
Flight context
- ASA634
- Alaska Airlines
- B39M
- KLAS → KSFO
- 2025-12-20 02:47 UTC
- KSFO runway 28R
All events on this flight
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