Given the airport had uninterrupted power from two other substations, did it have to shut down for long?
The 10-page risk report within Heathrow airport’s latest annual report does not mention North Hyde substation, or even substations in general, but it does describe the company’s approach to managing risks.
Heathrow rightly has “no appetite” for safety risks that could lead to loss of life. “Robust controls and contingency measures” are also in place to contain potential security, environmental and legal breaches within “minimal levels of impact”. But then one comes to operational matters, the category in which last Friday’s events would fall.
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