- Heathrow Airport closes all day over power outage BBC.com
- Major flight disruption expected as Heathrow closes BBC.com
- London’s Heathrow Airport closed all day Friday after fire causes power outage Fox Business
- London’s Heathrow Airport announces complete shutdown due to ‘significant power outage’ CNN
- Heathrow airport closed: more than 100 flights diverted after substation fire causes power outage – live The Guardian
Source: Google Finance – Market News