Diversion — ACA1258

ACA1258 (Air Canada) was operating from KMCO to CYHZ (Halifax / Stanfield International Airport) on 2025-12-29. SkyMeter detected a diversion to Montreal / Pierre Elliott Trudeau International Airport (CYUL) on runway 06L at 21:32 UTC. Peak cruise altitude FL371, turnaround area near Wattsville, US. Approach stability score: 86/100. Scores in this band are observed on roughly 50% of approaches at this runway and represent the centerline of normal operations. METAR at the time reported 22 kt wind, 10 kt crosswind component, 24,140 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

• SECURITY5/2811 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–1,000 ft

  NEW YORK, NY, Monday, October 20, 2025 through Tuesday, October 20, 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.

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