The official told a parliamentary committee that he had raised concerns about the resilience of Heathrow’s electricity supply just days before a fire forced the airport to shut down.

Heathrow Airport was warned about the "resilience" of its power supply in the days before a fire which shut down the airport for over a day last month. Nigel Wicking, chief executive of the Heathrow Airline Operators' Committee,

Heathrow airport was warned about its power supply in the days before it closed because of a fire, MPs were told. Nigel Wicking, chief executive of Heathrow Airline Operators Committee, which represents airlines that use the west London airport,

London’s Heathrow Airport announced a complete shutdown all day Friday due to a “significant power outage” due to a large fire nearby, causing massive disruption to one of the world’s busiest travel hubs as flights were forced to turn back midair or divert to other locations.

Flights at Heathrow Airport gradually resumed after an electrical substation fire triggered an 18-hour shutdown, causing major disruptions, cancellations and delays.

The blaze forced Britain’s largest airport to cancel or divert more than 1,000 flights on Friday and removed a linchpin of global air travel. Counterterrorism police were investigating the cause of the fire.