Substation fire shuts Heathrow for a day
A fire at the North Hyde substation cut power to Heathrow, closing Europe's busiest airport for the whole of Friday and affecting about 1,350 flights, with knock-on disruption for days.
- Service
- Heathrow Airport
- Date
- 21 March 2025
- Cause
- Power / fire
- Duration
- 24 hours
- Status
- resolved
- Severity
- critical
- Region
- UK
- Source
- Fortune ↗
Cite this
Nuffield Consulting, “Substation fire shuts Heathrow for a day”, The Daily Tech Wire outage & breach log, 21 Mar 2025. https://techwire.nuffieldconsulting.com/incidents/2025-03-21-heathrow-airport-outage/ (retrieved 15 Nov 2026).
This entry summarises public reporting. Please also cite the original source: Fortune, https://fortune.com/europe/2025/03/21/london-heathrow-airport-closed-major-fire-worldwide-disruption-travel/.
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