Canada suffers same mysterious air system outage as US, delaying more flights
Snippet of Article: "...Nav Canada, the Canadian national air navigation service provider, released a statement just after 12.30pm as US airlines struggled to resume normal service. “Nav Canada’s Canadian NOTAM entry system is currently experiencing an outage affecting newly issued NOTAMs, and we are working to restore function.”...A tweet posted by the agency stated: 'Nav Canada continues to investigate the cause of the outage; at this time, we do not believe it to be related to the FAA outage experienced earlier today.'"
Source: yahoo.com