ML20028C821

LER 82-049/01T-0:on 821207,fire Water Storage Tanks a & B Levels Found Below Tech Spec Limit.Caused by Stripped Gear in Makeup Valve Operator a & Sticking Brake in Motor Operator B.Gear Rotated Away from Stripped Teeth

ML20028C821
Person / Time
Site:	Millstone
Issue date:	01/05/1983
From:	Resetar J NORTHEAST NUCLEAR ENERGY CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20028C817	List: ML20028C816 ML20028C821
References
LER-82-049-01T, LER-82-49-1T, NUDOCS 8301140177
Download: ML20028C821 (1)

Text

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EVENT DESCRIPTION AND PROBABLE CONSEQUENCES h o I On December 7.1982, at 0855 hours0.0099 days <br />0.238 hours <br />0.00141 weeks <br />3.253275e-4 months <br />. while performina routine rounds. fire water I I storage tank A and B levels were found to be at 190,153 qallons and 190,074 qallons i o

TITl I respectively. The tanks were immediately filled to above the Technical Specification 1 o s l limit. Technical Specification 3.7.9.1.b. requires two fire suppression water I o o I supplies, each with a minimum contained volume of 200.000 callons. There were no I I

o 7 I consequences. Similar LER's: None 1

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40 gg 41 gg 42 gg 43 iw 131014 ig 44 47 33 34 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h E I Disassemb1v of ' A' make-up valve operator revealed a stripped aear. 'B' motor I 1 i l operator was found to have a sticking brake. Additionally 'B' valve was bindina. I I

E I The gear in ' A' make-up valve operator was rotated away from the stripped teeth and i 3 l lubricated. The sticking brake in 'B' valve operator was removed and the valve i I

EI lubricated.

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