Diversion — TSC685

CYAW · 10

2026-01-18 08:21 UTC· MMUN → CYAW· Air Transat A T Inc.· A321

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TSC685 (Air Transat A T) was operating from MMUN to CYHZ (Halifax / Stanfield International Airport) on 2026-01-18. SkyMeter detected a diversion to Halifax / CFB Shearwater Heliport (CYAW) on runway 10 at 08:21 UTC. Peak cruise altitude FL377, turnaround area near Buxton, US. Approach stability score: 37/100. Scores below 50 occur on under 10% of approaches at this runway and indicate the v2 scorer flagged the approach as highly anomalous (three or more gates exceeded the runway's P90 envelope simultaneously). METAR at the time reported 10 kt wind, 1 kt crosswind component, 24,140 m visibility. Detection algorithm and known limitations: see SkyMeter methodology.

Active FAA TFR during this flight

Source: FAA TFR archive (hourly snapshot)
  • SECURITY5/2809 2025-10-20 12:00Z – 2026-10-20 12:00Z SFC–2,000 ft

    Palm Beach, FL, Monday, October 20, 2025 through Tuesday, October 20, 2026 Local

    View FAA NOTAM →
  • 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 →
  • SECURITY5/2858 2025-12-26 04:59Z – 2026-07-02 03:59Z SFC–1,000 ft

    OCHOPPEE, FL, Thursday, December 25, 2025 through Wednesday, July 1, 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 10
  • 132 ft AGL at event
  • 120 kt ground speed
  • 0 fpm vertical
  • Approach stability 37/100
  • 10 kt wind
  • 1 kt crosswind component
  • 24,140 m visibility
  • SPECI CYAW 092043Z CCA 22005KT 15SM FEW016 FEW040 SCT060 SCT090 14/10 A2986 RMK CU1SC2SC1AC1 DENSITY ALT 223FT SHRA DIST E LAST OBS/NXT 131200Z SLP111

Flight context

  • TSC685
  • Air Transat A T
  • A321
  • MMUN → CYAW
  • 2026-01-18 08:21 UTC
  • CYAW runway 10

All events on this flight

Diversion 08:21:33 UTC · CYAW runway 10 · 132 ft AGL · 120 kt GS
Unstable approach 08:19:06 UTC · CYAW runway 28 · 1,215 ft AGL · 126 kt GS
Diversion 08:21:33 UTC · CYAW runway 10 · 132 ft AGL · 120 kt GS
Unstable approach 08:19:06 UTC · CYAW runway 28 · 1,215 ft AGL · 126 kt GS

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

SkyMeter · trace data observed via ADS-B· CYAW