Airlines warned Heathrow airport about concerns over the resilience of its electricity supply days before a power outage caused the closure of the UK’s busiest airport and hundreds of cancelled flights, MPs have heard.
Heathrow closed on March 21 after a massive fire at a nearby electricity substation caused a power cut at the airport, leading to the cancellation of more than 1,300 flights. The airport did not fully reopen for more than 24 hours.
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