ML20023A723

LER 82-028/03L-0:on 820909,diesel Driven Fire Pump (P-6B) Failed to Start When Using B Battery Bank During Surveillance.Cause by Normal End of Svc Life.Batteries Charged & Later Replaced

ML20023A723
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/07/1982
From:	Rogers P ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20023A714	List: ML20023A713 ML20023A723
References
LER-82-028-03L-01, LER-82-28-3L-1, NUDOCS 8210190526
Download: ML20023A723 (2)

Text

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EVENT OESCRIPTION AND PROBAGLE CONSEQUENCES h E I On 9/9/82 while at 91% full oower. the diesel driven firo nnmn IP 6R) 1 O i failed to start when usina the 'B' batterv bank durino a sur.vai11anca- 1 0 . i which is required per T.S.4.20.3. P-6B was ooerable using the redundant i O i ' A' battery bank, and the redundant electric motorJriven fire- I IOTin I pump (P-6A) was operable. This occurrence is reoortable por _ _ . _ _ _ _ . . _ _ . .

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43 44 es CAUSE OESCRIPTION AND CORRECflVE ACTIONS 27 i O I The cause of the occurrence was nnrmal and nf carvico life. The batteries i i ion 'B' bank have been in service for 35 months. 'B' batterv hante wac I g icharged for 9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />, after which the diesel fire pumo was started i 3 isuccessfully on 'B' bank. A subsequent start attempt on 'B' batterv 1

, , bank 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> later was unsuccessful, at. which point the batteries j

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i Dd - 4- LER NO. 50-313/82-028/03L-0 ATTACHMENT E

CAUSE DESCRIPTION AND CORRECTIVE ACTIONS (continued) 1

-in 'B' bank were replaced. The electrical periodic ' tests procedure .

..1307.01 will be ' revised to include steps for replacement of batteries for.the diesel fire pump battery banks.on 2 years staggered basis.

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