ML19345G256

LER 81-009/03L-0:on 810211,during Mode 1 Operation,While Performing Refueling Water Tank Level Indication Channel Checks,Channel a Indicated Greater than 100%,followed by Channel B 3-h Later.Caused by Frozen Transmitter Lines

ML19345G256
Person / Time
Site:	Arkansas Nuclear
Issue date:	03/10/1981
From:	Shively C ARKANSAS POWER & LIGHT CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML19345G255	List: ML19345G254 ML19345G256
References
LER-81-009-03L, LER-81-9-3L, NUDOCS 8103170455
Download: ML19345G256 (1)

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I4 7% HFPoRFDATE .0 3 . 60 61 DocE ET NUM.g a EVENT DESCRIPTION AND PROSABLE CONSEQUENCES h o 2 During Mode 1 operation, while perfonning routinii Refueling Water Tank  ;

ioi3i i(RWT) level indication channel checks, it was observed that Channel A 101 1 l(2LI-5636-1) was indicatina >100%. The RWT low level trio sianal was l FETil tolaced in a bvoassed condition per Action-Statement T.S. Table 3.3-3.6.6, I o 6 i#9a. Three hours later, Channel B (2LI-5637-2) was observed to indicate i F6Til l>100%. The trip signal was placed in a tripped condition per Action i

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son.1IStatement #9b. Remaining RWT level indicators remained operable. Similar1

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NAME OF PREPARER Chris N. Shively ,go,, %WW3M 8108170 9 G