ML20212D733
| ML20212D733 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 12/29/1986 |
| From: | Youngblood B Office of Nuclear Reactor Regulation |
| To: | Tucker H DUKE POWER CO. |
| Shared Package | |
| ML20212D739 | List: |
| References | |
| TAC-62269, TAC-62270, NUDOCS 8701050003 | |
| Download: ML20212D733 (2) | |
Text
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4 Docket Nos.: 50-369 9 9 DEC gg and 50-370 Ifr. H. B. Tucker, Vice President Nuclear Production Department Duke Pcwer Corpany 422 South Church Street Charlotte, North Carolina 28242
Dear Mr. Tucker:
Subject:
Relief from Inservice Hydrostatic Test Requirements - McGuire Nuclear Station, Units 1 and 2 By letter dated August 27, 1985 ycu requested relief from the hydrostatic testing requirements of ASME Code Section XI for portions of the Safety Injection System for PcGuire Nuclear Station, Units 1 and 2.
The request results from modifications for which confomance with certain Code require-ments is felt by Duke Power Company to be impractical. The modifications involve replacing discharge check valves for the ECCS cold leg injection accumulators, for reasons discussed in LER 369/85-11. There are no iso-lation valves between these check valves and the Reactor Coolant System, and valve orientation is such that hydrostatic testing is not possible.
In lieu of the required hydrostatic test, you propose nondestructive examinations consisting of radiography, ultrasonic testing, and surface examination of the welds.
The staff has detemined that relief from the inservice hydrostatic tests required by Section XI is justified.
Your alternative program of non-destructive examination and hydrostatic testino at prescribed 10-year intervals will provide an acceptable level of structural integrity. We agree that the specific requirements of Section XI of the ASME Boiler and Pressure Vessel Code,1980 Edition through Winter 1980 Addenda are impractical in this case.
Our Safety Evaluation Report is enclosed.
Accordingly, relief from the hydrostatic test requirements is VcGuire Units 1 and 2 as requested, pursuant to 10 CFR 50.55a(granted for g)(6)(i).
This relief is authorized by law and will not endanger life or property or the common defense and security and.is otherwise in the public interest given due consideration to the burden upon the licensee that could result if the requirements were imposed on the facility.
Sincerely, 8701050003 861229 PDR ADOCK 05000369 p
PDR B. J. Youngblood, Director Project Directorate #4 Division of PWR Licensing-A
Enclosures:
As stated cc:
See next page
- SEE PREVIOUS CONCURRENCES DISTRIEUTION: See next pace
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k Fr. H. B. Tucker Duke Power Coreany McGuire Nuclear Station cc:
14r. A.V. Carr, Esq.
Dr. John ft. Barry' Duke Power Company Department of Environmental Health P. O. Box 33189 l'ecklerburo County 422 South Church Street 1200 Blythe Boulevard Charlctte, North Carolina 28242 Charlotte, North Carolina 28203 County Manager of Mecklerburg Ccunty 720 East Fourth Street Charlotte, North Carolina 28202 Chairman, North Carolina Utilities Comission Mr. Robert Gill Dobbs Euilding Duke Power Company 430 horth Salisbury Street Nuclear Production Department Raleigh, North Carclirt 27CO2 P. O. Box 331Ec Charlotte, North Carolina 28242 ffr. Dayne H. Brown, Chief Radiation Protecticri Cranch J. Michael McGarry, III, Esq.
Division of Facility Services Bishop, Libennan, Cook, Purcell Department of Human Resources and Reynolds 701 Barbour Drive 1200 Seventeenth Street, N.W.
Raleigh, f:crth Carolina 27603-2008 Washington, D. C.
2C036 Senior Resident Inspector c/o U.S. huclear Regulatory Commission Route 4, Box 529 Hunterville, North Carolina 28078 Regional Administrator, Region II U.S. Nuclear Regulatory Commission, 101 fiarietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 L. L. Williams Area Manager, Mid-South Area ESSD Projects Westinghouse Electric Corporation fit!C West Tower - Bay 239 P. O. Box 355 Pittsburgh, Pennsylvanic 15230