05000333/LER-1980-070-03, /03X-1:during 800810-15,at Various Times During Plant Shutdown,Number of Intermediate Range Monitor Sys Problems Encountered.Problems Detailed in Encl

/03X-1:during 800810-15,at Various Times During Plant Shutdown,Number of Intermediate Range Monitor Sys Problems Encountered.Problems Detailed in Encl

ML19340D414
Person / Time
Site:	FitzPatrick
Issue date:	12/18/1980
From:	W. Verne Childs POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19340D411	List: 05000333/LER-1980-070, Forwards LER 80-070/03X-1 05000333/LER-1980-070-03, /03X-1:during 800810-15,at Various Times During Plant Shutdown,Number of Intermediate Range Monitor Sys Problems Encountered.Problems Detailed in Encl
References
LER-80-070-03X, LER-80-70-3X, NUDOCS 8012300546
Download: ML19340D414 (3)

LER-1980-070, /03X-1:during 800810-15,at Various Times During Plant Shutdown,Number of Intermediate Range Monitor Sys Problems Encountered.Problems Detailed in Encl

Event date:
Report date:
3331980070R03 - NRC Website

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ATTAtllHENT TO LER 80-070/03X-1 Page 2

of 2

9 DATE TlHE DESCRIPTION /lRH STATUS ACTION TAKEN 8/12/80 1320 1RH "B" failed surveillance /lRH D, E, F, G Commenced investigation of possible and H remain operable circuit malfunction.

8/12/80 1505 Completed repair of IRH "C" cable connector making None Requi rcel IRH "C" fully operabic/lRH C, D, E, F, G, and 11 operable 8/12/80 1645 IRH "B" fully operable following adjustnent of test None Required circul t/lRH B, C, D, E, F, G, and ll operable 8/12/80 1955 Commenced reactor startup.

IRH's fully operable None Required except Channel "A"

8/13/80 0100 IRH "D" failed downscale.

Probable cause of failure None Required is detector failure as a result of damage during installation.

I RH B, C, E, F, G, 'and 11 ope rab l e.

8/13/80 1014 Reactor automatic scram to satisfy the requirements None Required of NRC Bulletin 80-17 / all IRH's operable except A and D 8/13/80 1444 Commenced reactor startup / all IRH's operable None Required except A and D 8/13/80 2310 Reactor in the Run node / all IRH's operabic Hone Required (IRH's not required to except A and D be operable when in Run mode) 8/15/80 0945 IRH "B" failed downscale / IRH A, B and D In-None Required as IRH's are not require; operable to be operable in the Run mode IRH "B" was made operable during a plant outage in October, 1980 by replacing signal cable connectors.

At the time of submitting this revised LER, IRH A and D are failed.

Failure is believed to be due to failed detectors.

Repl acenen t is currently planned for the next scheduled plant outage in which the plant is placed in the cold shutdown condition.

No additional action will be required.