05000296/LER-1981-014-03, /03L-0:on 810310,drywell & Torus Hydrogen & Oxygen Analyzers Isolated.Caused by Wire Coming Loose from Terminal Strip Due to Stripped Screw.Screw Replaced

/03L-0:on 810310,drywell & Torus Hydrogen & Oxygen Analyzers Isolated.Caused by Wire Coming Loose from Terminal Strip Due to Stripped Screw.Screw Replaced

ML19350C824
Person / Time
Site:	Browns Ferry
Issue date:	03/31/1981
From:	TENNESSEE VALLEY AUTHORITY
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19350C820	List: 05000296/LER-1981-014, Forwards LER 81-014/03L-0 05000296/LER-1981-014-03, /03L-0:on 810310,drywell & Torus Hydrogen & Oxygen Analyzers Isolated.Caused by Wire Coming Loose from Terminal Strip Due to Stripped Screw.Screw Replaced
References
LER-81-014-03L, LER-81-14-3L, NUDOCS 8104060768
Download: ML19350C824 (2)

LER-1981-014, /03L-0:on 810310,drywell & Torus Hydrogen & Oxygen Analyzers Isolated.Caused by Wire Coming Loose from Terminal Strip Due to Stripped Screw.Screw Replaced

Event date:
Report date:
2961981014R03 - NRC Website

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EVENT DESCRIPTION AND PROBA8LE CONSEQUENCES h i

lDuring normal operation the drywell and torus hydrocen and oxygen analyzers [o i2l f7TTI1 isolated. System a analyzers were inoperable. System A analyzers were available l

3 o l4; }through the manual bypass switch. Reference T.S. 3.7.H.3.

There were no significant l jois; ;resulting events. There was no danger to henith or safety of public. No previous l

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.7 CAUSE CESCRIPTION AND CORRECTIVE ACTIONS h The stripped i

lijo1]A wire cane loose from a terminal strip due to a stripped screw.

The system wits rettirned I

g ij lacrew was repliaced with a new screw nnd tirhtened.

ioperable in less than one hour. No recurrence control required, due to no previous l

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- r. !i, aron.. nil Descripticr, nf Occurrence:

Dryvell and_ torus. hydrogen and oxygen analyzers isolated. System B analyzers were inoperable. System A analyzers were available through the manual bypass switch.

Gnuithns Prior tn Occurrence:

Unit'_1 at 98%

Unit 2 at 99%

Un'it 3 at 47% '

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.r..p,'rable equipment. Det.cribe

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- 4 A wire came loose from a terminal strip due to a stripped screw.

- M l. Jo s e f if.:n": t3 b

There was no damage to plant equipment. There'was no activity release, no

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personnel exposure or ' injury and no danger to the health or safety of the public.

-'.ortw? Wr> netion:

The stripped ~ screw'.was replaced with a new screw and -tightened. The system

_. as returned operable in less t.han one hour.

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