✈️ New Aeronautical Information Circular (AIC) Detected
AIC: AIC 006/2026
Published: 2026-04-02
Affected Location: Montréal, QC (CYUL/CYHU control zones)
Type: Airspace / Procedures Update
FIR: CZUL (Montreal FIR)
🧠 What Changed (Summary)
NAV CANADA will reposition the shared boundary between the Montréal/Pierre Elliott Trudeau Intl (CYUL) Control Zone and the Montréal Metropolitan (CYHU) Control Zone to reduce controller workload. The boundary moves from the south shore of the St. Lawrence River to approximately the midpoint of the river between the Champlain Bridge and the Louis-Hippolyte-La Fontaine Tunnel. Updated control zone geometry will be published in the Designated Airspace Handbook (TP 1820E).
- Shared CYUL/CYHU control zone boundary relocated to approximately mid-river (between Champlain Bridge and Louis-Hippolyte-La Fontaine Tunnel).
- Revised Class C control zone description for Montréal/Pierre Elliott Trudeau Intl (CYUL) published via TP 1820E coordinates (as listed in the AIC).
- AIC does not state an effective date/time in the provided text (published date only).
✈️ General Aviation Impact (Highlighted)
Airspace / Procedures:
- Expect the CYUL vs CYHU control zone boundary to be in a different position over/near the St. Lawrence River; ensure you are on the correct frequency and have the appropriate clearance when operating near the river in the affected area.
- Update flight planning references (TP 1820E and applicable charts/publications once updated) before operating VFR/IFR near CYUL/CYHU control zones.
Operational Notes:
- If operating along the river corridor, anticipate potential changes in which tower/ATC unit you are working with depending on position relative to the new boundary.
VFR Impact:
- VFR pilots transiting near the river between Champlain Bridge and the Louis-Hippolyte-La Fontaine Tunnel should verify lateral boundaries to avoid inadvertent entry into the wrong control zone/class of airspace.
🔗 Official Source
🏛️ This summary is generated using automated analysis and may omit important details.
It does not replace the official NAV CANADA AIC. Pilots must review the original notice in full prior to flight.