ML20084U253

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LER ER-77-008:on 770117,control Rod 38 Driven 13.6 Inches Below Group When Operator Manually Ran Control Rods in Order to Avert Reactor Trip Following Feedwater Pump Trip.Caused by Operator Failure to Switch Mode Selector
ML20084U253
Person / Time
Site: Palisades Entergy icon.png
Issue date: 02/02/1977
From:
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
LER-ER-77-008, LER-ER-77-8, NUDOCS 8306280284
Download: ML20084U253 (1)


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7 89 80 3[ l manually running in the control rods, but did not switch. mode. selector from auto to l

7 89 80 3[ ! manual resulting in rod No 38 being driven in 13.6 inches below the group before l

7 89 80 HE I realizing the error. The other operator i:mnediately tripped the plana l

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