ACA851 (Air Canada) was operating from EGLL to CYYC on 2026-05-10. SkyMeter detected a go-around at Calgary International Airport (CYYC) on runway 17L at 18:03 UTC. Trace data at the event: 3938 ft AGL, 154 kt GS. METAR at the time reported 3 kt wind, 2 kt crosswind component, 24,140 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 17L
- 3938 ft AGL at event
- 154 kt ground speed
- 0 fpm vertical
- 3 kt wind
- 2 kt crosswind component
- 24,140 m visibility
- CYYC 201200Z VRB04KT 15SM SKC 08/05 A3008 RMK SLP193
Flight context
- ACA851
- Air Canada
- A333
- EGLL → CYYC
- 2026-05-10 18:03 UTC
- CYYC runway 17L
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