05000368/LER-1981-005-03, /03L-0:on 810204,core Operating Limit Supervisory Sys Rendered Inoperable.Caused by Computer Failure.Software Reloaded & Computer Restarted.Backup Computer Will Be Installed

/03L-0:on 810204,core Operating Limit Supervisory Sys Rendered Inoperable.Caused by Computer Failure.Software Reloaded & Computer Restarted.Backup Computer Will Be Installed

ML20008E928
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/03/1981
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20008E927	List: 05000368/LER-1981-005, Forwards LER 81-005/03L-0 05000368/LER-1981-005-03, /03L-0:on 810204,core Operating Limit Supervisory Sys Rendered Inoperable.Caused by Computer Failure.Software Reloaded & Computer Restarted.Backup Computer Will Be Installed
References
LER-81-005-03L, LER-81-5-3L, NUDOCS 8103100513
Download: ML20008E928 (1)

LER-1981-005, /03L-0:on 810204,core Operating Limit Supervisory Sys Rendered Inoperable.Caused by Computer Failure.Software Reloaded & Computer Restarted.Backup Computer Will Be Installed

Event date:
Report date:
3681981005R03 - NRC Website

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lDuring Mode 1 operation, the plant computer failed and would not restart,I o

t rendering the Core Operating Limit Supervisorv System (COLSS) inoperable. I o

f6TO 1 Action was taken to reduce Dower to the Core Protec_ti,on_C_alculator (CPC) I 15TO t ndicated LPD and DNBR values within the limits of T.S. 3.2.4 and i

i riTTIIT.S. Fiqure 3.2-3.

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180-041,80-059, 80-082, and 81-003.

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