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NOTAMS resided on the ETMS/AFTN terminal that was once housed in what is now called AVOPS (Aviation Operations Centre) on a local computer. (previously CACO)
The supporting software, Gandacar ran the AFTN (Aeronautical Fixed Terminal Network) / ETMS (Enhanced Traffic Monitoring System) where TC would get daily NOTAM data dumps from NAV Canada which was forwarded to inspectors for review.
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