ML20245J331

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Responds to NRC Bulletin 88-011, Pressurizer Surge Line Thermal Stratification. Visual Exam of Pressurizer Surge Line Did Not Identify Any Appreciable Pipe Dents or Flaws
ML20245J331
Person / Time
Site: North Anna 
Issue date: 04/28/1989
From: Cartwright W
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
89-006, 89-6, IEB-88-011, IEB-88-11, NUDOCS 8905040100
Download: ML20245J331 (2)


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VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 April 28, 1989 W. R. CARTWRIGIIT VICE PRESIDENT NUCLEAR U. S. Nuclear Regulatory Commission Serial No.89-006 Attn: Document Control Desk NOD /SEC-LIC:jmj Washington, D. C. 20555 Docket No.

50-339 License No.

NPF-7 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNIT 2 i

RESPONSE TO NRC BULLETIN NO, 88-11 PRESSURIZER SURGE LINE THERMAL STRATIFICATION i

in accordance with NRC Bulletin 88-11, Virginia Electric and Power Company has performed inspections at North Anna Power Station Unit 2 to confirm the integrity of the pressurizer surge line. During the inspections required by Actions Requested 1.a., no discernable distress or damage was observed.

The visual examinations of the pressurizer surge line did not identify any appreciable pipe dents or flaws.

In addition, ultrasonic nondestructive examination of the pressurizer surge line welds adjacent to the reactor coolant system piping resulted in no relevant indications.

Further response concerning Actions Requested 1.b. is forthcoming and will be submitted according to the reporting requirements of the bulletin. Engineering evaluations are being conducted to demonstrate that the pressurizer surge line meets applicable design codes.

The information provided in this response is true and accurate to the best of my knowledge.

l If you have further questions, please contact us.

Very truly yours, r

W. R. Cartwright l

t 8905040100 890428 PDR ADOCK 05000339 Q

PDC

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cc:. U. S. Nuclear Regulatory Commission

.101 Marietta Street, N.W.

i Suite 2900 i

Atlanta, GA 30323

' Mr. J. L. Caldwell NRC Senior Resident Inspector North Anna Power Station l

i l

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