Heathrow, Europe's largest airport, was closed for almost a whole day after a fire at a major electricity substation affected power supplies. No planes were allowed to take off or land, causing flight diversions. About 1,300 flights were impacted with roughly 250,000 passengers affected. The airport's boss will soon meet MPs to explain what happened, as airlines are now beginning to threaten Heathrow with legal action. Read more: https://news.sky.com/story/airlines-threaten-heathrow-with-legal-action-13335133 #heathrow #aviation #airport #uknews #london #travel #politics 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 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 Sky News Daily podcast is available for free here: https://podfollow.com/skynewsdaily/ Sky News videos are now available in Spanish here/Los video de Sky News están disponibles en español aquí: https://www.youtube.com/channel/UCzG5BnqHO8oNlrPDW9CYJog To enquire about licensing Sky News content, you can find more information here: https://news.sky.com/info/library-sales