05000272/LER-1981-069-03, /03L-0:on 810703,while Adjusting Svc Water Flow Through Component Cooling Water Heat Exchanger,Operator Found Flow Control Valve 12SW127 Would Not Open.Caused by Marred Sealing Surface of Valve Tube Bundle.Bundle Cut Back

/03L-0:on 810703,while Adjusting Svc Water Flow Through Component Cooling Water Heat Exchanger,Operator Found Flow Control Valve 12SW127 Would Not Open.Caused by Marred Sealing Surface of Valve Tube Bundle.Bundle Cut Back

ML20010A591
Person / Time
Site:	Salem
Issue date:	07/31/1981
From:	Dickey F Public Service Enterprise Group
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20010A584	List: 05000272/LER-1981-069, Forwards LER 81-069/03L-0.Detailed Event Analysis Encl 05000272/LER-1981-069-03, /03L-0:on 810703,while Adjusting Svc Water Flow Through Component Cooling Water Heat Exchanger,Operator Found Flow Control Valve 12SW127 Would Not Open.Caused by Marred Sealing Surface of Valve Tube Bundle.Bundle Cut Back
References
LER-81-069-03L, LER-81-69-3L, NUDOCS 8108110583
Download: ML20010A591 (1)

LER-1981-069, /03L-0:on 810703,while Adjusting Svc Water Flow Through Component Cooling Water Heat Exchanger,Operator Found Flow Control Valve 12SW127 Would Not Open.Caused by Marred Sealing Surface of Valve Tube Bundle.Bundle Cut Back

Event date:
Report date:
2721981069R03 - NRC Website

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U. S NUCLE AR REGULAVORV CUMMISSION NP.C FORM 366 (7 77)

LICENSEE EVENT REPORT CONTROL BLOCK: l l

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ALL REQUIRED INFORM ATIOM 6

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26 26 LICENSE TYPE JO 67 L*T be 7

8 9 LICENSEE CODE 14 15 LfCE NSE NsMBER ITTTl,

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COWT 88 89 EVENT DATE 74 7b REPORT DATE 80 80 81 DUCKET NUMBE R 7

8 EVENT DESCRIPTION AND PROBABLE CONSEOUENCES h Io l2 l l On July 3, 1981, while trying to adjust service water flow through No. 12 component j the operator noticed that flow control valve l q j cooling water heat exchanger (CCW Hx),

The valve was declared inoperable, and action statereats j Io i4 ) I 12SW127 would not open.

1981.

l 3.7.1.1 and 3.5.2.a were entered at 0420 hours0.00486 days <br />0.117 hours <br />6.944444e-4 weeks <br />1.5981e-4 months <br />, July 3, lC } s J l 1

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CAUSE

CA USE CCOE CODE SUSCODE COM*0NENT CODE SUSCODE SU8 CODE 1 Cl Jl@ l Elh l Blh lV I A l L lV l E I X lh dh y h 10691 18 19 2R 7

8 9

10 11 12 13 af i ts C *.

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40 41 42 4

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CAUSE DESCRIPTION AND CORRECTIVE ACTIONS The sealing surface of the valve tube bundle was marred, l

ji;Oll Component failure.

The valve was removed from service, disassembled, and the I

li ;i ; l restricting movement.

tube bundle cut back to allow free movement.

It was reassembled, tested satisfacto-l g,,7j l 1,#3l l rily, and returned to service. Action statements 3.7.3.1 and 3.5.2.a were l

J Ii l4 i l terminated at o250 hours, July 4, 1981.

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8 9 DISCOVERv DESCRIPTION ANS

% POWE R OTHER STATUS D50 AY N/A l

W hl Operator Observation l

y W h lol9l7lhl ACTiviTV CO TENT LOCATION OF RELEASE RELEASEO OF RELE ASE AMOUNT OF ACTIVffV l

N/A l

l N/A l1 16 l d h bh 80 44 45 1

8 9 to 11 PERSONNEL firPosumts l'iTTl I ol o f o j@W@ DESCRIPTION I

NUM8ER TVPE l

N/A 8:

f PERSONNE L INJURIES DESCRiPtiO~h I

NUMSER E Lol ol ol@l

~neA 80 7

8 9 11 12 LOSS OF OR DAMAGE TO FACILITY Q l

TYPE DESCRIDTION v

b [Zjhl N/A 8108110583 810731 NRC USE ONLY

,uSu$Tv PDR ADOCK 05000272 t

uuS, DESCRIPTION h S

PDR l

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g/A So a 88 88 9

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NAME OF PREPARER