05000317/LER-1979-031-01, During Followup Testing on Efs Actuation Sys Undervoltage Logic Circuit A,15-volt Dc Power Supplies to Undervoltage Logic a & B Would Not Respond When Signaled

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• 05000317/LER-1979-031-01, /01X-0 on 790731:during Normal Operation,Logic Circuit a Would Not Initiate When Power Supplies to Actuation Cabinet Drawers Were Deenergized.Cause Under Investigation