ML20024F222

LER 83-093/03L-0:on 830802,refueling Water Storage Tank Level Transmitter LT-991 Failed High.Caused by Internal Component Failure.Transmitter replaced.W/830831 Ltr

ML20024F222
Person / Time
Site:	Summer
Issue date:	08/31/1983
From:	Dixon O, Mckinney C SOUTH CAROLINA ELECTRIC & GAS CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
LER-83-093-03L, LER-83-93-3L, NUDOCS 8309090081
Download: ML20024F222 (2)

Text

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EVENT OESCalPTION AND PROBABLE CONSEQUENCES O l o l2 l l0n August 2,1903, with the Plant in'ocode 1, Refuelirg W1ter StorEge Tark (RdST)  ;

LT-991 vas dec]arei in<perable and placed j o ;3 ; l Level Transmitter LT-991 failed high.  ;

j a j, j lin the bypassed conclition within one (1) hole in conpliance with Action Statenent g

%ere were no aderse consequences sinco l o l s l l16 of Technical Specification 3.3.2.  ;

l o j e l lthe renainirg three (3) channels of RdST level instrumentation renained operable.  ;

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CAUSE OESCRIPTION AND CORRECTIVE ACTIONS 27 l i j o l l'Ihe cause was an internal conpone t failure cf LT-991. 'Ihe output was failed l l i l 1 l l high and would not respand to a change in pressure. The transcritter w1s l l 1 l 2 l l replaced and the channel returned to operable status on August 5,1963 l

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4 SOUTH CAROLINA ELECTRIC ]AS COMPANY,,

post oprice seg , ; ,y ,1 COLUMaiA. SOUTH CAROLINA 29218' ' ' Y ' D ' ".

O.W.OlXON,JR.

uve$.'d~c'p ..'T7ous August 3hhNO36 A9: 34 Mr. James P. O'Reilly Fegional Administrator U.S. Nuclear Regulatory Commission Region II, Suite 2900 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 83-093

Dear Mr. O'Reilly:

Please find attached Licensee Event Report #83-093 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 16 of Technical Specification 3.3.2 (Table 3.3-3, Item 8.a), " Engineered Safety Feature Actuation System Instrumentation," on August 2, 1983.

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

Very truly yours,

/ _

j O. W. lxon, .

CJM:OWD/mac Attachment cc: V. C. Summer C. L. Ligon (NSRC)

E. H. Crews, Jr. G. J. Braddick T. C. Nichols, Jr.,/O. W. Dixon, Jr. J. C. Miller E. C. Roberts J. L. Skolds H. N. Cyrus J. B. Knotts, Jr.

Group / General Managers I&E (Washington)

O. S. Bradham Document Management R. B. Clary Branch C. A. Price INPO Records Center A. R. Koon NPCF D. A. Lavigne File (Lic./Eng.)

J. F. Heilman yY DCO : '

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