05000368/LER-1980-032-03, /03L-0:on 800525,during Mode 1 Operation,Plant Computer Failed on Three Occasions.Cause Undetermined. Computer Software Diagnostic Routines or Backup Computer Sys Will Be Purchased to Alleviate Problems

/03L-0:on 800525,during Mode 1 Operation,Plant Computer Failed on Three Occasions.Cause Undetermined. Computer Software Diagnostic Routines or Backup Computer Sys Will Be Purchased to Alleviate Problems

ML19318C499
Person / Time
Site:	Arkansas Nuclear
Issue date:	06/24/1980
From:	Pendergraft R ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19318C491	List: 05000368/LER-1980-032, Forwards LER 80-032/03L-0 05000368/LER-1980-032-03, /03L-0:on 800525,during Mode 1 Operation,Plant Computer Failed on Three Occasions.Cause Undetermined. Computer Software Diagnostic Routines or Backup Computer Sys Will Be Purchased to Alleviate Problems
References
LER-80-032-03L, LER-80-32-3L, NUDOCS 8007010535
Download: ML19318C499 (1)

LER-1980-032, /03L-0:on 800525,during Mode 1 Operation,Plant Computer Failed on Three Occasions.Cause Undetermined. Computer Software Diagnostic Routines or Backup Computer Sys Will Be Purchased to Alleviate Problems

Event date:
Report date:
3681980032R03 - NRC Website

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[_During Mode 1 operation, the plant computer-failed on three (3) occasions; io#2i 1o131i With the olant comouter inooprable. the C01_SS calcula ted DNRR and I PD -

I I values-were not available for operations use.

The Core Protection Calcu-l o.

Lo_L5J l lators (4) were used to monitor DNBR and LPD at a reduced power Der Tech I leisiiSpec Figures 3.2-1 and 3.2-3.

There have been no similar occurrences.

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