ML19249C057
| ML19249C057 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 08/20/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Stewart W FLORIDA POWER CORP. |
| References | |
| NUDOCS 7909070251 | |
| Download: ML19249C057 (2) | |
Text
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iluCLE AR REGUL ATORN COMMISS'C,N
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AT L AM A. GEORGIA 3030' k '.\\'.: *[
e In Reply Refer To:
$*UG 2 01979 RII:JPO 50-302 Florida Power Corperation ATTN:
W. P. Stewart, Director Nuclear Operations P. O. Box 14042, L il Stop C-4 St. Petersburg, FL 33733 Gentlemen:
Enclosed is IE Bulletin No. 79-02, Revicion 1, Supplement I;a.
1, which clarifies NRC positions on actions requested with regard to your power reactor f acility(fes) with an operating license.
Should you have any questions regarding this Bulletin or the attions required by you, please contact this office.
Sincerely,
<y%. _r. ~~,' ~,
James P. O'Reilly Director
Enclosures:
1.
IE Bulletin No. 79-02, Revision No. 1 (Supplement No. 1) 2.
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G. P. Beatty, Jr.
Nuclear Plant Superintendent Post Office Box 1228 Crystal River, Florida 32629
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6820 Accession No:
7908150164 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND EhTORCEMENT WASHINGTON, D.C.
20555 August 20, 1979 IE Bulletin No. 79-02 Revision No. 1 (Supplement No. 1)
PIPE SUPPORT BASE PLATE DESIGNS USING CONCRETE E Description of Circumstances:
The supplement to IE Bulletin No. 79-02 is intended to establish criteria f design evaluation of interim acceptability of plant operation w plate flexibility, or anchor bolt deficiencies.
In the reviews for system operability of the Duane Arnold and Crystal River facilities, criteria have been developed by the NRC staff that defines pipe su The criteria has been applied in lieu of other analysis or evalua-Specifically, the licensees identified problems with pipe supports in operability.
the original design factors of safety were not met but some lesser margin was tion.
The design margins of four or five are intended to be final design an installation objectives but systems may be classed as operable on an inter available.
with some lesser margin providing a program of restoration to at least the Bulletin factors of safety has been developed.
operability criteria are considered to probably require a Technical Specif tion exception and will require review on a case by case basis.
Action to be Taken by Licensees:
For the following two cases, plant operation may continue or may begin:
For the support as a unit, the factor of safety compared to ulti-mate strengths is less than the original design but equal to or greater a.
than two.
For the anchor bolts the factor of safety is equal to or greater than two and for the support steel the original design factor of safety com-b.
pared to ultimate strengths is met.
The above criteria may be applied ry =
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-ri graded to design margins of safetp@ DUPLICATE DOCUMENT and by the next refueling for nonf d fined in Bulletin No. 79-14 where of the plant which can be entered g ntire document previously entered giinto system under:
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