05000395/LER-1982-013, Forwards LER 82-013/03L-0.Detailed Event Analysis Encl

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Forwards LER 82-013/03L-0.Detailed Event Analysis Encl
ML20066A176
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 10/29/1982
From: Dixon O
SOUTH CAROLINA ELECTRIC & GAS CO.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20066A178 List:
References
NUDOCS 8211050106
Download: ML20066A176 (2)


LER-1982-013, Forwards LER 82-013/03L-0.Detailed Event Analysis Encl
Event date:
Report date:
3951982013R00 - NRC Website

text

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SOUTH CAROLINA ELECIRIC & GAS COMPANY

,ost oprict 7e4 O

COLUMalA, south CAROLINA 29218 f

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'l O O. W. OlXON, JR.

Vict P.ESIDENr i

October 29, 1982

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23 Mr. James P. O'Reilly, Director 9h 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 82-013

Dear Mr. O'Reilly:

Please find attached Licensee Event Report #82-013 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 A of Technical Specification 3.5.1.(b)

" Accumulators," on October 1, 1982.

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

Very truly yours, h

I

(

O. W. Dixon, Jr.

ARK:0WD:dwf Attachment cc:

V.

C. Summer A. R. Koon T. C. Nichols, Jr.

H. Radin 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.

M.

B.

Whitaker, Jr.

B. A. Bursey W.

A. Williams, Jr.

I&E (Washington)

O.

S.

Bradham Document Management Branch R.

B.

Clary NPCF M.

N. Browne File Coh-b OVk

- r i? g 8211050106 821029 L.e PDR ADOCK 05000395 S

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Mr. James P. O'Reilly LER No.82-013 Page Two October 29, 1982 DETAILED DESCRIPTION ~0F EVEt;T Technical Specification 3.5.1.(b) requires each Reactor Coolant System Accumulator level to be between 7368 and 7594 gallons, which corresponds to 52% and 65% full respectively.

After performing Instrumentation and Control Procedure (ICP) 395.026,

" Accumulator Tank A Level," the level transmitter was found to be out of calibration.

This transmitter is a differential pressure type level transmitter.

After recalibrating the transmitter, the accumulator: level was discovered to be below the Technical Specification minimum level by approximately 7%.

The accumulator was filled to the proper level within thirty minutes.

The Technical Specification Action Statement requires the accumulator to be filled within one hour.

PROBABLE CONSEQUENCES There was no potential adverse consequence.

The accumulators are designed such that the two (2) remaining OPERABLE accumulators would adequately perform their safety function.

CAUSE(S) 0F THE OCCURRENCE The "A" accumulator level transmitter was out of calibration which caused false level indication.

The transmitter was indicating acceptable accumulator level; when in actuality, the level was out of tolerance.

IMMEDIATE CORRECTIVE ACTIONS TAKEN The-level transmitter (ILT-0920) was recalibrated.

The accumulator was filled to the proper level per Technical Specifications.

ACTION TAKEN TO PREVENT RECURRENCE The calibration frequency of the accumulator level transmitters will be increased to once every eighteen months.

This will be in effect by November 15, 1982.