Power reduction (1 ore 15 apr 1986 anni – 14 ore 15 apr 1986 anni)

Descrizione:

Reactor 4 begins powering down before scheduled safety test. Attempts to determine if the plants turbines can keep coolant pumping until emergency generators come online in the event of power failure. 1 of the 2 turbines is turned off once power output reaches 50% at 1pm.

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