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Heathrow power outage: Substation fire results in $50M+ loss for BA-owner IAG

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Pilotcenter.net

In a recent incident that created chaos at London-Heathrow Airport (LHR), a massive power outage resulted from a substation fire, leading to significant financial losses for IAG, the parent company of British Airways, to the tune of around €50 million. The episode unfolded on March 20, 2025, just before 23:30 local time when the London Fire Brigade swiftly responded to the North Hyde Substation blaze, causing damage to the vital supergrid transformers.

Nearly 70,000 customers were left in the dark while Heathrow Airport, the scene of the disruption, had to enforce a near-total shutdown lasting almost a full day. This turn of events had a direct impact on the operations of British Airways, the airport's principal client, which operates mainly from Terminals 3 and 5. The repercussions of the outage were unmistakably visible as IAG disclosed its first-quarter results for the year on May 9, 2025, highlighting a substantial rise in operational costs due to the unexpected ordeal.

"The closure of London Heathrow Airport on March 21 had adverse financial implications, leading to a noticeable impact on our projected earnings for the first quarter," noted IAG officials. Despite ongoing investigations by authorities, including the London Fire Brigade and National Grid Electricity Transmission, the exact cause of the fire remains a mystery, with no indication to suggest any foul play, as confirmed by the Metropolitan Police Service.

Following the restoration of power to all terminals and the re-energization of the broader Heathrow network by 14:23 on March 21, operations gradually resumed at the airport, albeit with enhanced safety checks and measures in place. The interim investigation findings released by the National Energy System Operator (NESO) on May 8 shed light on the complexities of the incident, raising questions that are yet to be answered definitively.

As the industry grappled with the aftermath of the unexpected outage, the skies above London-Heathrow slowly returned to normalcy, signaling a crucial lesson in resilience and preparedness for such unforeseen challenges. Stay tuned to Pilotcenter.net News for further updates on this evolving story.

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