https://www.theglobeandmail.com/news/national/box-cutters-on-sept-11-air-canada-ny-flight/article18418858/

Box cutters on Sept. 11 Air Canada N.Y. flight

The RCMP are investigating the discovery of box cutters on an Air Canada plane that was to fly from Toronto to New York on Sept. 11, The Globe and Mail has learned.

Flight 704, which was scheduled to leave at 9 a.m., never took off from Pearson International Airport. It was grounded minutes after two hijacked airliners slammed into the World Trade Center in New York.