A Delta Airlines Boeing 767-332ER (N179DN) taxis to the runway for departure at San Francisco International Airport in San Francisco, Calif., en route to Atlanta, Ga., on Wednesday, July 23, 2025. (Andres Jimenez Larios/Bay City News)

Parts of San Francisco International Airport briefly lost power early Thursday morning after an electrical incident involving PG&E caused network problems across airport systems.

Airport officials said the early-morning power surge disrupted electrical equipment, knocking out power in portions of several terminals, two runways, and parts of the baggage system. Electricians ultimately had to reset the airport’s entire electrical network.

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