05000395/LER-1982-019, Forwards LER 82-019/03L-0.Detailed Event Analysis Encl

Forwards LER 82-019/03L-0.Detailed Event Analysis Encl

ML20028A556
Person / Time
Site:	Summer
Issue date:	11/08/1982
From:	Dixon O SOUTH CAROLINA ELECTRIC & GAS CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20028A557	List: 05000395/LER-1982-019, Forwards LER 82-019/03L-0.Detailed Event Analysis Encl 05000395/LER-1982-019-03, /03L-0:on 821010,during Initial Startup in Mode 3, Pressurizer PORV Block Valve Mvg 8000C in RCS Found Leaking in Open Position.Caused by Worn Valve Packing.Packing Replaced.Valve Tested & Returned to Operable Status
References
NUDOCS 8211220286
Download: ML20028A556 (2)

LER-1982-019, Forwards LER 82-019/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3951982019R00 - NRC Website

text

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e SOUTH CAROLINA ELECTRIC & gas COMPANY a

most oresca 1s4 0

CowueiA. south CAmoWNA 29218 x

o. W. DixoN. JR.

4O November 8, 1982 "m

NucLeam OpsmatioNS qa

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7 Mr. James P. O'Reilly, Director es

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U.S. Nuclear Regulatory Commission' Region II, Suite 3100 101 Marietta Street, N.W.

Atlanta, Georgia 30303

SUBJECT:

Virgil C.

Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 Thirty Day Written Report LER 82-019

Dear Mr. O' Reilly:

Please find attached Licensee Event Report #82-019 for Virgil C. Summer Nuclear Station.

This Thirty Day Report is required by Technical Specification 6.9.1.13.(b) as a result of entry into Action Statement (b) of Technical Specification 3.4.4,

" Relief Valves," on October 10, 1982.

Should there be any questions, please call us at your convenience.

l Very truly

urs, W

AH hi "

0. W.

Dixon, Jr.

ARK:0WD:dwr Attachment cc:

V.

C.

Summer A.

R. Koon T. C. Nichols, Jr.

H. Radin l

G.

H.

Fischer Site QA

0. W. Dixon, Jr.

C. L. Ligon (NSRC)

H.

N.

Cyrus G. J.

Braddick H. T.

Babb J.

L. Skolds D.

A. Nauman J.

B. Knotts, Jr.

I M. B. Whitaker, Jr.

B.

A. Bursey W. A. Williams, Jr.

I&E (Washington)

O. S.

Bradh:2 Document Management Branch l

R.

B.

Clary NPCF M. N.

Browne File l

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ontetgu 8211220286 821108

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Mr. James P. O'Reilly LER No.82-019 Page Two November 8, 1982 DETAILED DESCRIPTION OF EVENT On October 10, 1982, with the Plant in Mode 3, a Reactor Coolant System Pressurizer PORV Block Valve (MVG 8000 C) was experiencing packing leak in the open position.

The Reactor Coolant System was at the normal operating pressure of 2235 psig.

The valve was closed and its associated breaker was opened per Technical Specification 3.4.4.(b) Action Statement b.

1 PROBABLE CONSEQUENCES There was no adverse resulting consequences as two (2) Pressure PORV's and their associated block valves remained OPERABLE; also, the Pressurizer is equipped with three (3) code safety relief valves.

CAUSE(S) 0F THE OCCURRENCE The cause of this occurrence is attributed to valve packing wear.

IMMEDIATE CORRECTIVE ACTIONS TAKEN PORV block valve (MVG 8000 C) was closed within one (1) hour and its associated breaker was opened.

The packing was replaced, and the valve was returned to OPERABLE status on October 16, 1982.

ACTION TAKEN TO PREVENT RECURRENCE The PORV block valves have been added to the Station Preventive Maintenance Program to reduce recurrences of this nature.

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