ML19317F914

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RO-77-08:on 770726,sample Line Isolation Valve SFV-70001 Inside Containment Failed to Close.Caused by Failed Motor Operator,Limitorque Model SMB-000-5.Valve Manually Closed & Will Remain Closed Until Refueling Shutdown
ML19317F914
Person / Time
Site: Rancho Seco
Issue date: 08/15/1977
From: Mattimoe J
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML19317F905 List:
References
NUDOCS 8002210635
Download: ML19317F914 (1)


Text

_.

s LICENSEE EVENT REPL..T

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CONTROL BLOCK:l l

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l (ptaAsa PAWIT ALL REGUIRED INFORMATION) bgv) 8

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_.E _ SER 01 l c l Al Rl Sl Sl 1l l 0 l 0 l-l 0l 0l 0l 0l d-l 0 l 0 l l4l1 l1 l1l1l l0l1l 7 89 14 15 25 28 30 31 32 CATEGO M P

S DOCKET NUMGER EVENT CATE REPORT DATE O 1 CONT l M l I l

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l g l 5 l 0 l-l0 l1 l1'l2 l l0 l7l?l f,l 7l 7l l0 l A l1 l 9 l 7l 7l 7 8 57 58 59 60 81 68 69 74 75 BO EVENT OESCRIPTION DE l On July 26. 1977. after takinst a lionid samole from the pressurizer. the inside l

7 89 80 N 35 l enntninmane innineinn valve nn ehe ammnia 14na fn 41 p A en ninen.

Tha vpAvindane 7 89 80 gg l isolation valve outside containment was operable. A similar failure occurred on l,

7 89 80 Q l June 20, 1977, and was reported as R0-77-7.

(RO-77-8 )

l 7 89 80 UE I l

7 89 80 Pseus DE COMPONENT CODE MANUF "TUFER VOLATCN E I Pl3 l [Ej l V l A l I.l Vl Ol P l lAl lL l2 l0 10 l lN l

/,/,

7 89 10 11 12 17 43 44 47 48

i CAUSE OESCRIPTION l

gg l The valve would not close due to a failed motor operator, Limitorque Model $MB-000-5. l 1

7 89

, 80**

HE I The valve was manually closed and will remain in that position until the refueling l

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89 80. >

l shutdown.

l 3

FacuTY METHOD OP status 4 POWER OTHER STATUS OfSCO' ERY DESCOVERY DESCAPTON LEJ lt 1010 I I NA I

LAj l

NA l

1 7 8 9

10 12 13 44 45 48 80 dLEASE 0

AMOUNT OF ACTMTV LOCATON OF RELEASE h

y yl NA l

l NA l

7 8 9

10 11 44 45 80 -

PERSONNEL EXPOSURES NUM9ER TYPE DESCAPTON EE 101 01 d LzJ l

NA l

7 89 11 12 13 80 PERSONNEL INJUAES l

NUM8ER DESCRPTON l

L1L4J l 01 0l d l NA l

7 89 11 12 80 OFFSITE CONSEQUENCES

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g l Minimal to none.

l j

7 89 80

_j LOSS OR OAMAGE TO FACILITY TYPE DESCAPTON

.-l j

7 89 10 80

}

PUBUCITY E6 l Local newsonners ind vire services notified 7/27/77.

l 7 89 80 AODmONAL FACTORS i

80 02 s lo Cag-l 9889 80 -

DE I I

7 89 80 h

R. W. Colombo /F. T. Eisenhuth (916) 452-3211 NAME.

PHONE:

GP O est.467

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