ML20086A664

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Responds to NRC Bulletin 88-008,Suppl 3 Re Thermal Stratification Caused by Hot Fluid Leakage Out of RCS Into Unisolable Piping.Ultrasonic Testing,Performed During Fall 1991 Outage,Revealed No Recordable Indications of Flaws
ML20086A664
Person / Time
Site: Summer South Carolina Electric & Gas Company icon.png
Issue date: 11/13/1991
From: Skolds J
SOUTH CAROLINA ELECTRIC & GAS CO.
To: George Wunder
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
IEB-88-008, IEB-88-8, NUDOCS 9111190291
Download: ML20086A664 (3)


Text

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.a South Darolina Elsetric & oss Company John L Skolds P.O Ben 88 V'ce President Jenkmsville, SC 29065 Nuclear Operations (803; 345 4040

'SCE&Ci NOV l 3 L991

. Document Control Desk U. S. Nuclear Regulatory Commission Washington

  • C 20555 u

ATTENTION: Mr. G. F. Wunder Gentlemen:

Subject:

VIRGIL C. SUMMER NUCLEAR STATION DOCKET NO. 50/395 OPERATING LICENSE NO. NPF-12 NRC 8ULLETIN 88-08 SUPPLEMENT 3 NRC Bulletin 88-08 Supplement 3 provided information on thermal stratification caused by hot fluid leakage out of the Reactor Coolant System into unisolable piping.

South Carolina Electric & Gas Company's evaluation

'of the conditions outlinad in Supplement 3 indicated that only portions of the Residual Heat Removal System (RHR) could be affected and that nondestructive examination was piudent for specific pcrtions of the system.

During the f all 1991 refueling autage, ultrasonic testing was performed on critical locations on the RHR lines (shown on Figures 1 and 2) in accordance with the recommendations of NRC Bulletin 88-08 Supplement 2.

The results revealed no recordabic indications of flaws.

RHR line critical' locations will be included in SCE&G's overall program to address the issues identified in NRC Bulletin 88-08.

If you have any questions, please call.

Very truly yours, hk John L. Skolds ARR:JLS:lcd Attacha cnt c:

0. W. Dixon Jr.

General Managers R. R. Mahan (w/o attachment)

NRC Resident inspector R. J. White J. B. Knotts Jr.

S. D. Ebneter File (815.02)

G. F. Wunder RTS (IEB 880008)

NUCLEAR EXCELLENCE - A SUMMER TRADITION!

jf~~t!/f 9111190291 911113 POR-ADOCK 05000395

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