(Adds update from FAA) TORONTO, Oct 9 (Reuters) - A ground stop advisory issued on Thursday for Canada's Toronto Pearson airport due to an equipment outage has now been canceled, according to a post by the U.S. Federal Aviation Administration. Canada's largest airport said on the social media site X that it is undertaking maintenance on one runway, but all other runways are operational and flights are continuing to arrive and depart. (Reporting by Maiya Keidan and Allison Lampert; editing by Susan Heavey and Chris Reese) (The article has been published through a syndicated feed. Except for the headline, the content has been published verbatim. Liability lies with original publisher.)