ML20028C200

Updated LER 82-030/03X-1:on 820716,3A TIP Ball Valve Failed to Reclose After Opening During Valve Exercise.Cause Unknown.Limit Switches & Ball Valve Replaced & Successfully Tested

ML20028C200
Person / Time
Site:	Dresden
Issue date:	12/08/1982
From:	Morgan W COMMONWEALTH EDISON CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20028C196	List: ML20028C194 ML20028C200
References
LER-82-030-03X, LER-82-30-3X, NUDOCS 8301070193
Download: ML20028C200 (2)

Text

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. LICENSEE EVENT REPORT OU RE ORT DATE: 7/16/82 CONTROL SLOCK: { ,l 1

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lh (PLEASE PRINT OR TYPE ALL REQUIRED INFORMATIONI t o t 8i 9l l 1 ILICENSEE 7 t I D lCODE R I S 13 l@l O! 01 -IuCENSE 14 15 01 01 NUMBER 0l 01 0l -l 0l250 l@l 26 4uGENsE l l l 1lTYPE 1l.ll@l JO l

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61 3OCKET NUWS ER 68 09 - EVENT DATE 74 75 REPORT DATE 80 EVENT DESCRIPTION AND PRC8ABLE CONSEQUENCES h lo62l lDurine normal operations while exercising the TIP ball valves, 3A TIP ball valve l

o93; l failed to reclose after opening (Tech. Spec. 3.7.D.1). This was of minimal safety l I o r A I l significance since the TIP shear valve was available to isolate the TIP if necessary. l lo isi I There was no effect on public health or safety. Last occurrence of this type reported; I o is 1 J by R.O. 77-17 on Docket 50-237. l l

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lilolISpecific cause was unknown. Limit switches and ball valve were replaced and success- I Iiiil lfullv tested for operability. DOS 1600-8 will continue to be performed weekiv. The I g l.25 inch solenoid activated valve is supplied by General Pneumatic Corporation. l li t al l I

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, KELEAsED oPRELEASE AMOUNT OF ACTIVITY LOCAT10N QP RELEASE l l1 } s' *l l Zl @' Wgl N/A l l N/A l PEmsoNNEL Exposures NvusER -ves l1 l* 7* l l 0 l' 0 l0 l@l Zl@letsCRimeN @N/A l

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. SUPPLEMENT TO DVR

• DVR NO. .

STA UNIT. YEAR NO.

D- 12 - 3 - 82 - 49 PART I l TITLE OF EVENT OCCURRED Failure of 3A TIP Ball Valve DATE TIME

{ REASON FOR SUPPLEMENTAL REPORT l

To update the cause and corrective action for the failure of 3A TIP Ball Valve to close, PART 2 l ACCEPTANCE BY STATION REVIEW /

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DATE \ L\ \bl 7 3

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/h SUPPLEMENTAL REPORT APPROVED

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AND AUTHORIZED FOR DISTRIBUTION ,' M W/t/(4f[- /L/6[8F

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