ML19249C047
| ML19249C047 | |
| Person / Time | |
|---|---|
| Site: | Farley  |
| Issue date: | 08/20/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | Clayton F ALABAMA POWER CO. |
| References | |
| NUDOCS 7909070236 | |
| Download: ML19249C047 (2) | |
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[. areg'o't UNITED ST ATES NUCLEAR REGULATORY COMMISSION
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E REGION 11 3 Qygeg iomAnn u A sv.. n w. sun t aioc ATL ANT A. GEORGI A 30303 AUG 2 01979 In Reply Refer To:
RII:JPO 50-348 Alabama Power Cetpany AITN :
F. L. Clayton, Jr.
Senior Vice President P. O. Box 2641 Birmingham, AL 35291 Gentlemen:
Enclosed is IE Bulletin No. 79-02, Revision 1, Supplement N:. 1, which clarifies NRC positions on actions requested with recard to your power reactor facility (ies) with an operating license.
Should you have any questions regarding this Eulletin or the actione required by you, please contact this office.
Sincerely,
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Janes P. O'Reilly Director
Enclosures:
1.
IE Bulletin No. 79-02, Revision No. 1 (Supplement No. 1) 2.
Listing of IE Bulletins Issued in Last Six Months d' ' v %) Ibl D
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AUG 2 0 1979 Alabama Power Company,
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A. R. Barton Executive Vice President Post Office Box 2641 Birmingham, Alabama 35291 J. T. Young Vice President-Production Post Office Box 2641 Birmingham, Alabama 35291 C. Biddinger, Jr.
Manager-Corporate Quality A;;
ance Post Office Box 2641 Birmingham, Alah-r-33291 H. O. Thrash Manager-Nuclear Generation Post Office Box 2641 Birmingham, Alabama 35291 H. G. Hairston, III Plant Manager Drawer 470 Ashford, Alabama 36312 R. E. Hollands, Jr.
QA Supervisor Post Office Box U Ashford, Alabama 36312
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SSINS:
6820 Accession No:
7908150164 UNITED STATES NUCLEAR REGULATORY C0.%ISSION OFFICE OF INSPECTION AND ENFORCEMENT 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 EXPANSION A Description of Circumstances:
The supplement to IE Bulletin No. 79-02 is intended to establish criteria for the evaluation of interim acceptability of plant operation with less than the design factors of safety for piping supports due to as-built problems, under design, base 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 support The criteria has been applied in lieu of other analysis or evalua-operability.
Specifically, the licensees identified problems with pipe supports in which tion.
the original design factors of safety were not met but some less available.
installation objectives but systems may be classed as operable on an interim basis with some lesser margin providing a program of restoration to at least the Facilities which fall outside the Bulletin factors of safety has been developed.
operability criteria are considered to probably require a Technical Specifica-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 b.two and for the support steel the original design factor of safety com-pared to ultimate strengths is met.
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The above criteria may be applied p
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graded to design margins of safety DUPLICATE DOCUMENT and by the next refueling for nona f"ff#syfe "t previously entered the pl at wh h can be en ed de 9Q691G[)g y ANO No. of pages:
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