Go-around — UAL1679
MMUN · 12L2025-12-27 23:35 UTC· KSFO → MMUN· UNITED AIRLINES INC· B39M
UAL1679 (United Airlines) was operating from KSFO to MMUN on 2025-12-27. SkyMeter detected a go-around at Cancún International Airport (MMUN) on runway 12L at 23:35 UTC. Trace data at the event: 335 ft AGL, 153 kt GS, 0 fpm vertical. METAR at the time reported 7 kt wind, 5 kt crosswind component, 9,656 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)- SECURITY5/6914 2025-05-06 23:30Z – 2027-10-18 11:03Z SFC–6,000 ft
South Padre Island, TX, Tuesday, May 6, 2025 Local
View FAA NOTAM → - 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 →
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 12L
- 335 ft AGL at event
- 153 kt ground speed
- 0 fpm vertical
- 7 kt wind
- 5 kt crosswind component
- 9,656 m visibility
- METAR MMUN 241649Z 16013KT 6SM BKN015CB BKN250 31/26 A2995 RMK 8/303 HZ
Flight context
- UAL1679
- United Airlines
- B39M
- KSFO → MMUN
- 2025-12-27 23:35 UTC
- MMUN runway 12L
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