Air Canada briefly grounds flights due to computer system problem

Air Canada briefly grounded its planes Thursday due to a problem with its computer system, delaying nearly half its flights. A "technical issue" with the system the airline uses to communicate with aircraft and monitor their performance prompted a halt to operations, the Montreal-based company said.Download our app to get alerts to your device Get the latest newsletters right to your inbox"There have been some delays as a result, but the system is now returning to normal, and the precautionary g