Is one blundering engineer responsible for crippling Heathrow? Airport bosses face questions over farcical shutdown that left 300,000 travellers stranded - as new theory emerges
Tens of thousands of travellers are still stranded across the globe today after a blaze at an electricity substation cut power to the airport.
Tens of thousands of travellers are still stranded across the globe today after a blaze at an electricity substation cut power to the airport.
