LONDON — A fire at an electrical substation knocked out power to Heathrow Airport for most of Friday, forcing Europe's busiest hub to shut down for ... airport and the impact is expected to ...

This substation, Preece said, is one of many that supply Heathrow, though it may have serviced critical areas, leading to the airport-wide shutdown. There are enough supplies in the grid to ...

The outage, as well as the timing of various religious holidays, meant that traffic was down overall compared to March 2024.