05000368/LER-1979-075-03, /03X-1:on 790822,during Mode 1 Operation,Data Link from Control Element Assembly Cluster to B Core Protection Computer Dropped,Resulting in B Channel Tripping.Caused by Failed Optical Amplifier.Data Link Was Repaired

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/03X-1:on 790822,during Mode 1 Operation,Data Link from Control Element Assembly Cluster to B Core Protection Computer Dropped,Resulting in B Channel Tripping.Caused by Failed Optical Amplifier.Data Link Was Repaired
ML19254E296
Person / Time
Site: Arkansas Nuclear 
Issue date: 10/25/1979
From: Pendergraft R
ARKANSAS POWER & LIGHT CO.
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19254E288 List:
References
LER-79-075-03X, LER-79-75-3X, NUDOCS 7910310424
Download: ML19254E296 (1)
v • d • e


LER-1979-075, /03X-1:on 790822,during Mode 1 Operation,Data Link from Control Element Assembly Cluster to B Core Protection Computer Dropped,Resulting in B Channel Tripping.Caused by Failed Optical Amplifier.Data Link Was Repaired
Event date:
Report date:
3681979075R03 - NRC Website
v • d • e

text

Update Report - Previous Report Date September 12, 1979 N Rc, oRM x.

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'n REPOMT O AT E At EVENT DESCR6PT80N ANO PROBABLE CONSECUENCES IO l211 During Mode 1 operation, the a link from CEAC #1 to the "B" CPC i

10131 1 drnonad a bit causina an inaccurate output indication, resulting in the lo1 1I "B" CPC channel trippina.

The data link failed in the conservative i

fBTn i direction and the remaining CEAC data links were operable.

t There have been no similar occurrences.

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