UK government orders probe into Heathrow shutdown that sparked concern over energy resilience

“This is a huge embarrassment for Heathrow airport. It’s a huge embarrassment for the country that a fire in one electricity substation can have such a devastating effect," said Toby Harris, a Labour Party politician who heads the National Preparedness Commission, a group that campaigns to improve resilience.

Energy Secretary Ed Miliband said he'd asked the National Energy System Operator, which oversees U.K. gas and electricity networks, to "urgently investigate" the fire, “to understand any wider lessons to be learned on energy resilience for critical national infrastructure."

It is expected to report initial findings within six weeks.

“The government is determined to do everything it can to prevent a repeat of what happened at Heathrow," Miliband said.

Heathrow announced its own review, to be led by former transport secretary Ruth Kelly, a member of the airport's board.

Heathrow Chairman Paul Deighton said Kelly will look at “the robustness and execution of Heathrow’s crisis management plans, the airport’s response during the incident and how the airport recovered.”

Stalled Journeys

More than 1,300 flights were canceled and some 200,000 people stranded Friday after an overnight fire at a substation 2 miles (3.2 kilometers) away cut power to Heathrow, and to more than 60,000 properties.

Heathrow said Saturday it had “added flights to today’s schedule to facilitate an extra 10,000 passengers." British Airways, Heathrow’s biggest airline, said it expected to operate about 85% of its 600 scheduled flights at the airport Saturday.

While many passengers managed to resume stalled journeys, others remained in limbo.

Laura Fritschie from Kansas City was on vacation with her family in Ireland when she learned that her father had died. On Saturday she was stranded at Heathrow after her BA flight to Chicago was canceled at the last minute.

“I’m very frustrated," she said. “This was my first big vacation with my kids since my husband died, and ... now this. So I just want to go home.”

Shutdown points to a broader problem

Residents in west London described hearing a large explosion and then seeing a fireball and clouds of smoke when the blaze ripped through the substation. The fire was brought under control after seven hours, but the airport was shut for almost 18 hours. A handful of flights took off and landed late Friday.

Police said they do not consider the fire suspicious, and the London Fire Brigade said its investigation would focus on the substation's electrical distribution equipment.

Still, the huge impact of the fire left authorities facing questions about Britain's creaking infrastructure, much of which has been privatized since the 1980s. The center-left Labour government has vowed to improve the U.K.'s delay-plagued railways, its aged water system and its energy network, promising to reduce carbon emissions and increase energy independence through investment in wind and other renewable power sources.

“The last 40, 50 years we’ve tried to make services more efficient,” said Harris. “We’ve stripped out redundancy, we’ve simplified processes. We’ve moved towards a sort of ‘just in time’ economy. There is an element where you have to make sure you’re available for ‘just in case.’ You have to plan for things going wrong.”

'Clear planning failure'

Heathrow is one of the world's busiest airports for international travel, and saw 83.9 million passengers last year.

Chief executive Thomas Woldbye said he was “proud” of the way airport and airline staff had responded.

“The airport didn’t shut for days. We shut for hours,” he told the BBC.

Woldbye said Heathrow's backup power supply, designed for emergencies, worked as expected, but it wasn’t enough to run the whole airport, which uses as much energy as a small city.

“That’s how most airports operate," said Woldbye, who insisted “the same would happen in other airports" faced with a similar blaze.

But Willie Walsh, who heads aviation trade organization IATA, said the episode “begs some serious questions.”

“How is it that critical infrastructure – of national and global importance – is totally dependent on a single power source without an alternative? If that is the case, as it seems, then it is a clear planning failure by the airport,” he said.

Walsh said “Heathrow has very little incentive to improve” because airlines, not the airport, have to pay the cost of looking after disrupted passengers.

‘No back-up plan’

Friday's disruption was one of the most serious since the 2010 eruption of Iceland's Eyjafjallajokull volcano, which shut Europe's airspace for days.

Passengers on about 120 flights were in the air when Friday's closure was announced and found themselves landing in different cities, and even different countries.

Mark Doherty and his wife were halfway across the Atlantic when the inflight map showed their flight from New York’s John F. Kennedy Airport to Heathrow was returning to New York.

“I was like, you’re joking,” Doherty said.

He called the situation “typical England — got no back-up plan for something happens like this. There’s no contingency plan.”

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Associated Press journalist Kwiyeon Ha at Heathrow Airport contributed to this report.

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