Incident at THUNDER BAY ON (CYQT) (Communication navigation surveillance/air traffic system)
1997-03-13: A complete MACS (Modular Aeronautics Communication System) failure occurred between 1606Z and 1625Z. Consoles 2,3 and 4 had been removed from service earlier to avoid equipment damage and preserve spares during a thunderstorm. A similar loss of frequencies, phones, and monitors occurred two times previously (see CADORS C94/198). Between 1625Z and 2030Z all four consoles were put back in service.
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