ML14184A779
| ML14184A779 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 01/23/1991 |
| From: | Lo R Office of Nuclear Reactor Regulation |
| To: | Eury L CAROLINA POWER & LIGHT CO. |
| Shared Package | |
| ML14184A780 | List: |
| References | |
| TAC-79435, NUDOCS 9101250043 | |
| Download: ML14184A779 (2) | |
Text
January 23, 1991 Docket No. 50-261 Mr. Lynn W. Eury Executive Vice President Power Supply Carolina Power & Light Company Post Office Box 1551 Raleigh, North Carolina 27602
Dear Mr. Eury:
SUBJECT:
RELIEF FROM ASME CODE, SECTION XI, SERVICE WATER SYSTEM REPAIR H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2, (TAC NO. 79435)
By letter dated January 16, 1991, you requested relief from the requirements of American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code pursuant to 10 CFR 50.55a(g)(6)(i). Relief was requested to perform a temporary non-code repair on the service water (SW) system piping welds related to the Containment Fan Cooler HVH-4 and welds at the SW containment penetrations of the H. B. Robinson Steam Electric Plant, Unit No. 2 (HBR2). The repair is necessary to correct indications of microbiologically induced corrosion (MIC).
The temporary non-code repair consists of installation of welded stainless steel sleeves over the susceptible welds that have MIC indications. This repair complies with the ASME Code,Section XI, repair requirements with the single exception of not removing the existing flaws. A permanent repair of the SWS/HVH-4 piping welds in compliance with the ASME Code will be performed during the next Refueling Outage (Refueling Outage 14 in 1992). A plan and schedule for permanent repair of the containment penetrations will be provided to the Nuclear Regulatory Commission by September 30, 1991.
In accordance with the requirements of 10 CFR 50.55a, the staff has performed a review of your request. The staff concludes that the performance of a temporary non-code repair as you proposed is acceptable and the relief from the ASME Code requirements you requested is granted pursuant to 10 CFR 50.55a(a)(3)(i), until the completion of the Refueling Outage 14 scheduled for 1992. The staff's Safety Evaluation on this request is enclosed.
Original Signed By:
Ronnie H. Lo, Senior Project Manager Project Directorate II-1 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation cc:
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Mr. L. W. Eury H. B. Robinson Steam Electric Carolina Power & Light Company Plant, Unit No. 2 cc:
Mr. R. E. Jones, General Counsel Mr. Dayne H. Brown, Director Carolina Power & Light Company Department of Environmental, P. 0. Box 1551 Health and Natural Resources Raleigh, North Carolina 276.02 Division of.-Radiation Protection P. 0. Box 27687 Raleigh, North Carolina 27611-7687 Mr. H. A. Cole Special Deputy Attorney General Mr. Robert P. Gruber State of North Carolina Executive Director P. 0. Box 629 Public Staff -
NCUC Raleigh, North Carolina 27602 P. 0. Box 29520 Raleigh, North Carolina 27626-0520 U.S. Nuclear Regulatory Commission Mr. C. R. Dietz Resident Inspector's Office Manager, Robinson Nuclear Project H. B. Robinson Steam Electric Plant Department Route 5, Box 413 H. B. Robinson Steam Electric Plant Hartsville, South Carolina 29550 P. 0. Box 790 Hartsville, South Carolina 29550 Regional Administrator, Region II U.S. Nuclear Regulatory Commission Mr. Heyward G. Shealy, Chief 101 Marietta Street Bureau of Radiological Health Suite 2900 South Carolina Department of Health Atlanta, Georgia 30323 and Environmental Control 2600 Bull Street Mr. R. Morgan Columbia, South Carolina 29201 General Manager H. B. Robinson Steam Electric Plant P. 0. Box 790 Hartsville, South Carolina 29550 Mr Ioet
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