05000255/LER-1979-010-03, /03L-0 on 790207:during Resin Sluicing Operations, Manual Isolation Valve (MV-CVC502) Was Left Open,Resulting in 17 Gpm Leak to Radwaste Sys.Caused by Broken Valve Stop. Valve Stop Will Be Replaced

/03L-0 on 790207:during Resin Sluicing Operations, Manual Isolation Valve (MV-CVC502) Was Left Open,Resulting in 17 Gpm Leak to Radwaste Sys.Caused by Broken Valve Stop. Valve Stop Will Be Replaced

ML18043A528
Person / Time
Site:	Palisades
Issue date:	03/06/1979
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML18043A526	List: 05000255/LER-1979-010-03, /03L-0 on 790207:during Resin Sluicing Operations, Manual Isolation Valve (MV-CVC502) Was Left Open,Resulting in 17 Gpm Leak to Radwaste Sys.Caused by Broken Valve Stop. Valve Stop Will Be Replaced
References
LER-79-010-03L, LER-79-10-3L, NUDOCS 7903090221
Download: ML18043A528 (1)

LER-1979-010, /03L-0 on 790207:during Resin Sluicing Operations, Manual Isolation Valve (MV-CVC502) Was Left Open,Resulting in 17 Gpm Leak to Radwaste Sys.Caused by Broken Valve Stop. Valve Stop Will Be Replaced

Event date:
Report date:
2551979010R03 - NRC Website

text

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Palisades NRC FORM 366 (7-77)

U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: I 1 G)

(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION) 1 6

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I Ml I I PIA IL I 1 101 o lo Io I o I ol o I ol cl o I ol o 1014 I 1 !1 I 1 I 1101 I I 7

8 9

LICENSEE COOE 14

,5 LICENSE NUMBER 25 26 LICENSE TYP.E 30 57 CAT 58 CON"T [ill]

7 8

~~~~~~ ~I o I 5 I o Io p I 21 51 5 GI o I 2 I o I 7 I 71 9 (VI o I 3 I o 16 I 7 I 9 I G) 60 61 DOCKET NUMBER 68 69 EVENT CATE 74 75 REPORT CATE 80 EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES@

[ITI] I During resin sluicing operations, a manual isolation valve (MV-CVC502) in

!Im the letdown system was inadvertently left open resulting in a 17 gpm

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leak from the letdown system to the radwaste system.

The leaking water

[))))

1 was collected in the spent resin storage tank, and no release to the envirjn-1)))) I ment occurred.

Upon.discovery of the high PCS leak rate, the leak so'lirce

~

1 was located and corrected.

This event is reportable per TS 6.9.2.b.(4).

((((] 1

'.l'hi~ _ev~nt had no adverse effect upon the* pub],.ic health or safety.

7 8 9 [ill]

7 8

SYSTEM CODE

!C !GI@

9 10

\\!:.,) REPORT I 7 j9 I

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LER/RO LVENTYEAR NUMBER 21 22

CAUSE

CAUSE COCE SUSCOOE COMPONENT COOE 1..!J@ L.!J@ IV I AIL IV I El XJ@

11 12 13 18 SEQUENTIAL OCCURRENCE REPORT NO.

COOE I I 1°1 1 1°1 1.....-1 1°131 23 24 26 27 28 29 COMP.

suscooE

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19 REPORT TYPE

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JO VA1..VE suecooE t£.J@

20 l=l 31 REVISION

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32.

I BO ACTION FUTURE EFFECT SHUTDOWN

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ATTACHMENT TAKEN ACTION ON PLANT METHOO HOURS '.::/

SUBMITTEO NPR0-4 FORM::>UB.

PRIME C:.OMP.

SUPPLIER COMPONENT MANUFACTURER Lx.J@l.AJ@ LI@ Lz..I lo lo Io lo I UIJ@

33 34 35 36 37 40 41 Ur..l

!AJ@ lw I 310 181@

CAUSE DESCRIPTION ANO CORREC"rlVE ~Ci:_IONS @

42 43

"'4 47 IT))] I The valve was inadvertantly placed in the open posit'ion due to the valve (I]J]

stop being broken.

With the valve stop broken3 it is not possible to

!III] determine the valve's position.

The valve stop will be replaced.

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9 FACILITY t'jQ\\

STATUS

% POWER OTHER STATUS \\;::;J METHOD OF A

80 IIITJ L_fil@ I l lo Io l@._I.....

N !..... A.___ ___

DISCOVERY DISCOVERY DESCRIPTION ~

Lb.JQ9~1_.;;.0.u~e~r~a~t~o~r-...o~b-='-s~e~r~v~a~t~i~o~n:=.----.~~~~~--'

a s 10 12 13

"'4 ACTIVITY CONTENT

(.;;;\\

RELEASED OF RELEASE AMOUNT OF ACTIVITY e [ill] L!l@ l!..J@I N/A I

7 8

9 10 11 44 45 46 80 45 N/A LOCATION OF RE~EASE @

90 PERSONNEL EXPOSURES r:;;:;..,

NUMBER r.;:;,, TYPE DESCRIP/ION

[!TI] I 01 0 I 0 '~@.____N_! A ______________________

7 8

9 11 12 13 PERSONNEL INJURIES

(,';\\

BO NUMBER OESCRJPT\\ON~

QTI] I o Io I o !@,___N_;_A ________________________ ___.

7 B

9 11 12 LOSS O< OR OAM.. GE TO FACILITY t4:j\\

TYPE

DESCRIPTION

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L.zJ@).........,.._.._ ____________________________________ ___.

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9 10 so PUBLICITY Q.,

NRC SE O

!SSUEDIZ\\ DESCRIPTION~

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I II I I I I I I I I I I a

9 10 68 ss BO