The chief executive of the National Grid has confirmed power was available to keep Heathrow open during Friday's shutdown. In an interview with the Financial Times, John Pettigrew said the fire that knocked out a substation was a "unique event",

Britain's government and London's Heathrow Airport have ordered investigations into the handling of a power outage Friday as a result of a substation fire.

Heathrow’s chief executive has defended the airport’s response to the power outage and shutdown that sparked global travel chaos, apologizing to stranded passengers and confirming the airport is “operating as normal” Saturday.

Heathrow Airport will resume some flights after a large fire at an electrical substation knocked out power to the hub and disrupted global travel for hundreds of thousands of passengers, Brian Melley,