ML17037B576
| ML17037B576 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 09/10/1975 |
| From: | Lear G Office of Nuclear Reactor Regulation |
| To: | Rhode G Niagara Mohawk Power Corp |
| References | |
| Download: ML17037B576 (4) | |
Text
Docket No. 50-220 SEP 1 P
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Gentlemen:
NINE MILE POINT UNIT 1 Niagara Mohawk Power Corpdratiqn ATTN:
Mr. Gerald K. Rhode Vice President' Engineering 300 Erie Boulevard Rest
- Syracuse, Now York 13202 DISTRIBUTION:
NRC PDR Local PDR Docket ORBI3 Rdg KRGoller TJCartez
'Lear JGuibert SATeets OELD 016E (3)
ACRS. (16)
Gray file RLTedesco RRMaccary KSeyfrit DEisenhut Experience at some BMR plants with Mark I containments has shown that in some cases the design of the relief valve line restraints inside the torus may be inadequate.
At some plants, the original restraints have been replaced.
Because of the design inadequacy observed at some
- plants, we request that you perform an analysis to confirm that the relief valve line restraints at your plant are adequate.
Ve request that you submit a summary of your analysis within 45 days of the receipt of this letter.
Your submittal should provide sufficient information to enable us to perform an independent evaluation of your analysis.
In addition, this letter confirms our recent oral request that you
- inspect, at your earliest opportunity, the relief valve lines and their restraints inside th'e torus for indications of damage or degradation if no inspection of this type has been performed subsequent to relief valve blowdown.
Please contact us if you have any questions regarding our-requests.
This request for generic blanket.clearance number July 31, 1977.
information was approved by GAO under a
B-180225 (R0072); this clearance expires Sincerely,
/5/
George Lear, Chief Operating Reactors Branch 83 Division of Reactor Licensing cc:
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- 0 Niagara Mohawk Power Corporation SEP 1 P
~975 CC:
Arvin E. Upton, Esquire
- LeBoeuf, Lamb, Leiby $ MacRae 1757 N Street, N.
W.
Washington, D.
C.
20036.
Anthony Z. Roisman, Esquire Berlin, Roisman 5 Kessler 1712 N Street, N.
W.
Washington, D. C.
20036 Dr. William Seymour, Staff Coordinator New York State Atomic Energy Council New York State Department of Commerce 112 State Street
- Albany, New York 12207 Oswego City Library 120 E. Second Street Oswego,.
New York 13126
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