05000395/LER-1982-047, Forwards LER 82-047/03L-0.Detailed Event Analysis Encl

Forwards LER 82-047/03L-0.Detailed Event Analysis Encl

ML20070G551
Person / Time
Site:	Summer
Issue date:	12/16/1982
From:	Dixon O SOUTH CAROLINA ELECTRIC & GAS CO.
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20070G554	List: 05000395/LER-1982-047, Forwards LER 82-047/03L-0.Detailed Event Analysis Encl 05000395/LER-1982-047-03, /03L-0:on 821118,operations Personnel Failed to Document Tavg on 30-minute Basis Greater than 551 Degrees w/Tavg-Tref Deviation Alarm Not Reset.Caused by Failure of Operator to Recognize Surveillance Requirements
References
NUDOCS 8212220376
Download: ML20070G551 (2)

LER-1982-047, Forwards LER 82-047/03L-0.Detailed Event Analysis Encl

Event date:
Report date:
3951982047R00 - NRC Website

text

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e SOUTH CAROLINA ELECTRIC & GAS COMPANY 2I cost oerica ne

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COLuusiA. SouTM CAnouNA 29218 O. W. D'xoN, JR.

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VICE PRE 51 DENT December 16,"I'982

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Mr. James P. O'Reilly, Director 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. 50/3?5 Operating License No. NPF-12 Thirty Day Written Report LER 82-047 j

Dear Mr. O'Reilly:

Please find attached Licensee Event Report #82-047 for Virgil C. Summer Nuclear Station.

This Thirty Day Report is required by Technical Specification 6.9.1.13.(c) as a result of failure to perform Technical Surveillance Requirement 4.1.1.4.b.

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

Very trul

yours,

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57 -

O. W. Dixon, Jr.

CJM:0WD:dwf Attachment l

cc:

V.

C.

Summer A.

R. Koon T.

C. Nichols, Jr.

G.

D. Moffatt G.

H. Fischer Site QA 0.

k'. 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.

M. B. Whitaker, Jr.

B.

A. Bursey W. A. Williams, Jr.

I&E (Washington)

O.

S.

Bradham Document Management Branch R. B. Clary INPO Records Center M. N. Browne NPCF File upi-1CI AL C B212220376 821216 PDR ADOCK 05000395 S

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e Mr. James P. O'Reilly l

LER No.82-047 Page Two December 16, 1982 DETAILED DESCRIPTION OF EVENT On November 18, 1982, with the Plant in Mode 3, operations personnel discovered that they had been in violation of Technical Specification 3 1.1.4, Surveillance Requirement 4.1.1.4.b.

The Tavg-Trer Deviation Alarm had failed and could not be reset on October 29, 1982.

The annunciator failure was subsequently repaired on November 19, 1982.

During the period of time from alarm failure until discovery of the violation, operations personnel failed to document the required 30 minute verification that Tavg was greater than or equal to 551 F while in Modes 1 and 2.

PROBABLE CONSEQUENCES No adverse consequences existed prior to the discovery of the violation because:

1.

A review of the Tavg recorder indicated that, with the exception identified in LER 82-042, Tavg did not go below 551*F while the reactor was critical.

2.

Numerous startups were made during this period of time, and in all criticalities, Tavg is routinely verified to be above 551 F.

CAUSE(S) OF THE OCCURRENCE The cause of this occurrence was operator error in failing to recognize the subject surveillance requirement for the existing

plant conditions

IMMEDIATE CORRECTIVE ACTIONS TAKEN No immediate corrective action was necessary since the Plant was in Mode 3 at the time of discovery.

ACTION TAKEN TO PREVENT RECURRENCE The operator logs were revisad on November 21, 1982, to reflect the requirement to log Tavg every 30 minutes whenever Tavg As less than 561*F and the Tavg-Trer Deviation Alarm is not reset.