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Heathrow chiefs and ministers were warned 10 years ago that power supply was 'key weakness' that could cripple Europe's busiest airport
A report by Jacobs, a major consultancy, highlighted in November 2014 how electricity outages could completely shut Europe's busiest airport.
A report by Jacobs, a major consultancy, highlighted in November 2014 how electricity outages could completely shut Europe's busiest airport.
