ML20217B500
| ML20217B500 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 04/20/1998 |
| From: | Kuo P NRC (Affiliation Not Assigned) |
| To: | Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| Shared Package | |
| ML20217B505 | List: |
| References | |
| TAC-MA1440, TAC-MA1441, NUDOCS 9804230056 | |
| Download: ML20217B500 (2) | |
Text
April 20, 1998 Mr. J. P. O'Hinlan Senior Vice President - Nuclear Virginia Electric and Power Company 5000 Dominion Blvd.
Glen Allen, Virginia 23060
SUBJECT:
NORTH ANNA POWER STATION, UNITS 1 AND 2 - EVALUATION OF PROPOSED ALTERNATIVE TO THE ASME CODE SURFACE EXAMINATION OF PART-LENGTH CONTROL ROD DRIVE MECHANISM (CRDM) REACTOR VESSEL HEAD PENETRATION SEAL WELDS (TAC NOs. MA1440 AND MA1441)
Dear Mr. O'Hanlon:
By letter dated April 8,1998, you proposed an attemative to the surface examination requirements of paragraph N-518.4 of the 1968 American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. The proposed attemative would be used in conjunction with four nonstructural seal welds on threaded caps for the Unit 2 reactor vessel head penetrations for the part-length CRDMs after the CRDMs are removed.
The staff has completed its review of your request and concludes that the proposed alternative to the ASME Code for surface examination of the seal welds on threaded caps for the reactor vessel head penetrations for the part-length CRDMs will provide an acceptable level of quality and safety. The proposed alternative inspection is authorized pursuant to 10 CAR 50.55a(a)(3)(i) and is acceptable for the four stated repairs at North Anna Power Station, Unit Nos.1 and 2. Authorization of the attemative does not extend to future use without prior staff approval.
The safety evaluation supporting our finding is enclosed. If you have any questions conceming this action, please contact N. Kalyanam, at (301) 415-1480.
Sincerely, ORIGINAL. SIGNED BY:
P. T. Kuo, Acting Director
@gf Project Directorate 11-1 gg Division of Reactor Projects 1 am Office of Nuclear Reactor Regulation Docket Nos. 50-338 and 50-339 I
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Enclosure:
Safety Evaluation 73
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OFFICIAL RECORD COPY
Mr. J. P. O'Hanlon North Anna Power Station Virginia Electric & Power Company Units 1 and 2 l
CC:
Mr. J. Jeffrey Lunsford County Administrator Regional Administrator. Region II Louisa County U.S. Nuclear Regulatory Comission P.O. Box 160 Atlanta Federal Center l
Louisa. Virginia 23093 61 Forsyth St. SW. Suite 23T85 Atlanta. Georgia 30303 Michael W. Maupin. Esquire Hunton and Williams Mr. W. R. Matthews. Manager l
Riverfront Plaza. East Tower North Anna Power Station l
951 E. Byrd Street P. O. Box 402 Richmond. Virginia 23219 Mineral. Virginia 23117 Dr. W. T. Lough Mr. R. C. Haag Virginia State Corporation U.S. Nuclear Regulatory Commission l
Commission Atlanta Federal Center 1
l Division of Energy Regulation 6.1. Forsyth St.. SW Suite 23T85 P. O. Box 1197 Atlanta, Georgia 30303 Richmond, Virginia 23209 Mr. J. P. O'Hanlon Old Dominion Electric Cooperative Senior Vice President - Nuclear 4201 Dominion Blvd.
Virginia Electric and Power Company Glen Allen. Virginia 23060 Innsbrook Technical Center 5000 Dominion Blvd.
Mr. J. H. McCarthy Manager Glen Allen. Virginia 23060 Nuclear Licensing & Operations Support Mr. David Christian. Manager Virginia Electric and Power Company Surry Power Station Innsbrook Technical Center Virginia Electric and Power Company 5000 Dominion Blvd.
5570 Hog Island Road Glen Allen. Virginia 23060 Surry, Virginia 23883 Office of the Attorney General Robert B. Strobe. M.D., M.P.H.
Commonwealth of Virginia State Health Commissioner 900 East Main Street Office of the Commissioner Richmond. Virginia 23219 Virginia Department of Health P.O. Box 2448 Senior Resident Inspector Richmond. Virginia 23218 North Anna Power Station U.S. Nuclear Regulatory Commission 1024 Haley Drive Mineral. Virginia 23117
.