05000272/LER-1979-067-03, /03L-0:on 791017,during Shutdown Operation,Hedl Up Transient Found to Have Depressed Crease in Tank Top & Dents in Other Areas.Tank Vent Valve Found Shut.Caused Unstated. Design Change to Provide Vacuum Breakers Initiated

/03L-0:on 791017,during Shutdown Operation,Hedl Up Transient Found to Have Depressed Crease in Tank Top & Dents in Other Areas.Tank Vent Valve Found Shut.Caused Unstated. Design Change to Provide Vacuum Breakers Initiated

ML18081A588
Person / Time
Site:	Salem
Issue date:	11/19/1979
From:	Kapple A Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML18081A587	List: 05000272/LER-1979-067, Forwards LER 79-067/03L-0 05000272/LER-1979-067-03, /03L-0:on 791017,during Shutdown Operation,Hedl Up Transient Found to Have Depressed Crease in Tank Top & Dents in Other Areas.Tank Vent Valve Found Shut.Caused Unstated. Design Change to Provide Vacuum Breakers Initiated
References
LER-79-067-03L, NUDOCS 7911260282
Download: ML18081A588 (1)

LER-1979-067, /03L-0:on 791017,during Shutdown Operation,Hedl Up Transient Found to Have Depressed Crease in Tank Top & Dents in Other Areas.Tank Vent Valve Found Shut.Caused Unstated. Design Change to Provide Vacuum Breakers Initiated

Event date:
Report date:
2721979067R03 - NRC Website

text

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'CENSEE EVENT REPORT U.S.*

EAR REGULATURY COMMISSION CONTROL BLOCK: !-I _.___.__..__.__.__-.!10 1

6 (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)

[£12] IN IJ Is I G Is I 1 101 o I o I -1 o Io I o I o I o I - I o I o 1014 I 1 I 1I1 I 1 IG)l I I© 7

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LICENSEE CODE 14 15 LICENSE NUMBER 25 26 LICENSE TYPE JO 57 CAT 58 CON'T [ID]

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• 61 DOCKET NUMBER 68 69 EVENT DATE 74 75 REPORT DATE BO EVENT DESCRIPTION AND PROBABLE CONSEQUENCES@

[]JI] I During shutdown operation, the boric acid evaporator was in service processing the I'

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contents of llCVC HUT.

A loud noise and dust in the area. of the tanks was inves-

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t~gated and revealed llCVC HUT to.have a depressed crease in the tank top and

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I dents in other areas.

The tank vent valve was found shut.

No release of liquid

((I[) I or vapor from the tank to the atmosphere occurred.

Air samples in the area were ITTIJ [ill]

- 10 2.3xl0

µc/cc.

This is the second occurrence of this type.

7 8 9 [ill]

7 8

SYSTEM CODE I clG I@

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LEA 'RO ['.VENT YE.A.A

\\:.:.,/ REPORT I 7 I 9 I NUMBER 21 22

CAUSE

CAUSE COMP.

CODE SUBCODE COMPONENT CODE L.~J@~@ z1z1z1z1z1z1@

SUBCODE

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11 12 13 18 19 SEQUENTIAL OCCURRENCE REPORT REPORT NO.

CODE TYPE VALVE SUBCODE

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23 24 26 2 7 28 29 30 31 REVISION NC. w 32 COMPONENT

80.

ACTION FUTURE TAKEN ACTION EFFECT SHUTDOWN r::;::;...

ATTACHMENT NPRD-4 PRIME COMP.

ON PLANT METHOD HOURS ~ SUBMITTED FORM SUB.

SUPPLIER MANUFACTURER UU@W@ L!J@

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33 34 35 36 37 40 41 42 43 I z 19 I 91 1@

CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS @

44 47 o:::r:IJ I Investigation could not determine who had shut the vent valve without authorization.

o::::IIJ I A design change to provide vacuum breakers for the eves tanks has been initated.

o:IJJ I Additional administrative controls to maintain proper valve alignment will be pre-IIlIJ I sented in the Company response to NRC letter to Mr. F. w. Schneider dated 11-1-79.

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80 METHOD OF DISCOVERY DESCRIPTION @

DISCOVERY

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9 10 12 11 ACTIVITY CONTENT t:::;\\

RELEASED OF RELEASE AMOUNT OF ACTIVITY~

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10 11 44 45 46 80 LOCATION OF RELEASE @

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NUMBER

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9 11 12 13 PERSONNEL INJURIES Co\\

NUMBER DESCRIPTION~

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9 11 12 80 LOSS OF OR DAMAGE TO FACILITY '4J'I TYPE

DESCRIPTION

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10 6B 69 80 NAME OF PREPARER ______

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PHONE: (609)365-7000 Salem Ext.

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