This is exactly what happens when you have a government-controlled monopoly running essential infrastructure

If Heathrow were privately owned and competing with other airports, they'd have way more incentive to invest in backup power systems and fire prevention measures. Instead, we're stuck with a single point of failure that disrupts thousands of travelers' plans. Bureaucrats will probably just shrug and tell people to be patient while they "assess the impact." Meanwhile, private businesses lose money, and ordinary people suffer delays for something that should've been preventable. Yet another example of why government should get out of the way and let the market handle things more efficiently.