ML20065D808

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Special Rept Spr 90-011:on 900829,main Plant Vent high-range Process Monitor RM-A13 Declared Inoperable.Caused by Spiking of Monitor.Troubleshooting & Component Replacement Unsuccessful.Suppl to Rept to Be Submitted
ML20065D808
Person / Time
Site: Summer 
Issue date: 09/12/1990
From: Bradham O
SOUTH CAROLINA ELECTRIC & GAS CO.
To: Ebneter S
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
SPR-90-011, SPR-90-11, NUDOCS 9010010042
Download: ML20065D808 (1)


Text

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W South Co Hr.s Doctric & One Company olt3 s. pre ham

,a JenkmsvHle, SC 29365

. Nucisar Operations (803) 345-4040 1

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September 12, 1990 Mr. S; D. Ebneter Regional Administrator U. S. Nuclear Regulatory Commission Region 11. Suite 2900 101 Marietta Street, N. W.

Atlanta, Georgia 30323

SUBJECT:

Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPf-12 Special Report (SPR 90-011)

Dear Mr. Ebneter:

This Special Report is being submitted by South Carolina Electric & Gas Company pursuant to the requirements of Technical Specification 3.3.3, Radiation Monitoring instrumentation. On August 29, 1990, the Main Plant Vent High Range Process Monitor, RM-A13, was declared inoperable due to " spiking" of the monitor.

The Licensee has performed extensive troubleshooting on the unit, including the replacment of numerous electronic components, without resolving the spiking pr0ble A supplement report will be submitted when the problem is corrected detailing the deficiency and corrective action taken.

A preplanned alternate method of monitoring has been initiated as required by the Technical Specifications.

Should you required any additional information, please call at your convenience.

Very truly yours,

$$sa

0. S. Bradham RJB/0SB: led c:
0. W. Dixon, Jr./T. C. Nichols, Jr.

E. C. Roberts R. V. Tanner Document Control Desk General Managers INPO Records Center J. J. Hayes, Jr.

ANI Library C. A. Price NSRC NRC Resident inspector HPCF J. B. Knotts, Jr.

RTS (0NO880033) 0.

. Marsh & McLennan File (818.05 & 818.07) t.s.

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