Fri Mar 21 20:50:00 UTC 2025: **Heathrow Airport Shuts Down After Electrical Substation Fire**
London, England – A major fire at an electrical substation near Heathrow Airport caused a complete shutdown of Europe’s busiest airport for nearly 18 hours on Friday, March 21, 2025. The blaze, which started just before midnight, knocked out power to the airport and thousands of surrounding homes.
The fire, which authorities say is not believed to be suspicious, led to the cancellation or diversion of at least 1,350 flights, stranding an estimated 200,000 passengers. Flights were diverted to Gatwick, Charles de Gaulle, and Shannon airports, while some planes mid-flight were forced to turn back. Passengers described chaotic scenes, with long delays and difficulties in rebooking flights.
The airport’s backup power system proved insufficient to maintain operations. Although power was restored later in the day, the disruption is expected to last for several days as airlines work to reposition aircraft and crews and passengers reschedule their travel plans. The British government temporarily lifted overnight flight restrictions to help alleviate the backlog.
The incident prompted criticism of Britain’s preparedness for such events. Experts questioned the resilience of the UK’s critical national infrastructure and called for a thorough investigation. While Heathrow’s CEO stated the incident was unprecedented, the disruption has raised concerns about the airport’s contingency planning.
The investigation into the cause of the fire is ongoing, though initial assessments indicate no suspicion of foul play. The scale of the disruption has been compared to the 2010 Eyjafjallajokull volcanic eruption which also severely impacted European air travel. The long-term effects on airlines, passengers, and the UK’s reputation for reliable air travel remain to be seen.
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