05000366/LER-1980-063-03, /03L-0:on 800421,w/reactor in Startup/Hot Standby Mode,D/W Torus Temp Recorder Found Inoperable.Caused by Loose Wire on Common Terminal Block on Recorder.Connection Tightened

/03L-0:on 800421,w/reactor in Startup/Hot Standby Mode,D/W Torus Temp Recorder Found Inoperable.Caused by Loose Wire on Common Terminal Block on Recorder.Connection Tightened

ML19309H598
Person / Time
Site:	Hatch
Issue date:	05/06/1980
From:	Nix R GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19309H596	List: 05000366/LER-1980-063, Forwards LER 80-063/03L-0 05000366/LER-1980-063-03, /03L-0:on 800421,w/reactor in Startup/Hot Standby Mode,D/W Torus Temp Recorder Found Inoperable.Caused by Loose Wire on Common Terminal Block on Recorder.Connection Tightened
References
LER-80-063-03L, LER-80-63-3L, NUDOCS 8005130550
Download: ML19309H598 (2)

LER-1980-063, /03L-0:on 800421,w/reactor in Startup/Hot Standby Mode,D/W Torus Temp Recorder Found Inoperable.Caused by Loose Wire on Common Terminal Block on Recorder.Connection Tightened

Event date:
Report date:
3661980063R03 - NRC Website

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60 68 COCKET NUYB ER CJ C3 EVENT QATE 74 75 PEPORT OATE 63 EVENT oESCRIPTioN Ano pro 8AB<E CoNSEcuENCES h 0 2 I With the reactor in the startuo/ hot-standby mode, an operator observed i

that a 0/W-Torus Temp. Recorder was inocerative, which did not comply with I

O 3 I [O TTl l Tech Specs requirement 3.3.6.4-1. All temoerature readings were between 1

O s i 500 and 65o F, which did not correspond to other indications that were I

lO ls l 1 operable. There were no effects upon public health and safety due to this 1

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event nor was safe plant operation affected. This is a repetitive event I

i O p3 l l as last reported on LER 50-366/1979-137.

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The cause of the occurrence has been attributed to a loose wire on the

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Georgia Power Company Plant E. I. Hatch Baxley, Georgia 31513 4

1 Reportable Occurrence Report No. 50-366/1980-063.

On April 21, 1980, with the reactor in the startup/ hot-standby mode, an i

operator observed a Drywell and Torus temperature recorder, 2T47-R626,

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was inoperative, which did not comply with Tech Specs requirement 3.3.6.4-1.

1 All temperature readings for the recorder were between 500 F and 650 F, which did not correspond to other indications of 800 F to 1050 F on 2T47-R627 and 2T47-R620.

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The cause of the occurrence has been attributed to a loose wire on the

" common" terminal block of the recorder. The connection was tightened and all indication. points were found to read correctly.

There were no effects upon public health and safety due to this event nor i

was safe plant operation affected. This is a repetitive event as last I

reported on Reportable Occurrence Repor.t No. 50-366/1979-137.

The generic review of the event did not reveal any inherent problems.

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