A power outage that shut Heathrow Airport earlier this year, was most likely caused by a "catastrophic failure" of equipment in a nearby substation, according to a new report. Around 1,300 flights were cancelled and more than 270,000 air passenger journeys were disrupted. Speaking to Sky News, Chief Executive of the National Energy System Operator, Fintan Slye said: "It was a really significant event that impacted lots of people in the local community...events like this are incredibly rare." Read more: https://news.sky.com/story/catastrophic-failure-that-led-to-heathrow-power-outage-revealed-as-report-outlines-the-chances-missed-to-prevent-it-13391266 #heathrow #uknews #skynews SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews Follow us on Twitter: https://twitter.com/skynews Like us on Facebook: https://www.facebook.com/skynews Follow us on Instagram: https://www.instagram.com/skynews Follow us on TikTok: https://www.tiktok.com/@skynews Sky News Daily podcast is available for free here: https://podfollow.com/skynewsdaily/ For more content go to http://news.sky.com and download our apps: Apple https://itunes.apple.com/gb/app/sky-news/id316391924?mt=8 Android https://play.google.com/store/apps/details?id=com.bskyb.skynews.android&hl=en_GB To enquire about licensing Sky News content, you can find more information here: https://news.sky.com/info/library-sales