ML19225B480
| ML19225B480 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point, Palisades File:Consumers Energy icon.png |
| Issue date: | 07/20/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Dewitt R CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 7907250228 | |
| Download: ML19225B480 (1) | |
Text
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UNITED STATES l\\, y, cf,' g NUCLEAR REGULATORY COMMISSION T10.
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REGION 111 o,,
799 ROOSEVELT ROAD g
GLEN ELLYN, ILLINOIS 60137
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JUL 3 01979 Docket No. 50-155 Docket No. 50-255 Consumers Power Company ATTN:
Mr. R. B. DeWitt Manager of Nuclear Plant Operations 212 West Michigan Avenue Jackson, MI 49201 Gentlemen:
IE Bulletin No. 79-14 is revised to limit the scope of work required.
The changes are indicated on the enclosed replacement page for the bulletin.
If you desire additional information regarding this matter, please contact this office.
Sincerely, e [N.
Cry f
ames G. Keppler Director
Enclosure:
IE Bulletin No. 79-14, page 2, Revision 1 cc w/ encl:
Mr. C. J. Hartman, Pl:nt Superintendent Mr... G. Lewis, Plant Su erintendent Cent.al Files DirecNor, NRR/DPM Direct 3r, NRR/ DOR 39.8 210 PDR Local 'DR NSIC TIC Ronald Callen, Michigan Public Service Commission Anthony Roisman, Esq.,
Attorney Myron M. Cherry, Chicago
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bD 190
f IE Bulletin No. 79-14 July 18, 1979 Revision 1 Page 2 of 3 Action to be taken by Licensees and Pemit Holders:
All power reactor facility licensees and construction permit holders are requested to verify, unless verified to an equivalent degree within the last 12 months, that the seismic analysis applies to the actuaT configura-tion of safety-related piping systems. The safety related pipin Seismic Category I systems as defined by Regulatory Guide 1.29 g includes Seismic Design Cla%ification" Revision 1, dated August 1,1973 or as defined in the applit.able FSAR. The action items that follow apply to all safety related pipine 21/2-inches in diameter and greater an_d to seismic Category 1 piping, regarcless of size which was dynamically analyzed by computer.
For older plants, where Seismic Category I requirements did not exist 'at the time of licensing, it must be shown that the at oual configuration of fWtid safety-celated systems, utilizinq piping 21/2 inches in diameter and creater, meets design requirements.
Specifically, each licensee is requested to:
1.
Identify inspection elements to be used in verifying that the seismic analysis input information conforms to the actual configuration of safety-related systems. For each safety related system, submit a list of design documents, including title, identification number, revision, and date, which were sources of input information for the seismic analyses. Also submit a description of the seismic analysis input infomation which is contained in each document.
Identify systems or portions of systems which are planned to be inspected during each sequential inspection identified in Items 2 and 3. Submit all of this information within 30 days of the date of this bulletin.
2.
For portions of systems which are nomally accessible *, inspect one system in each set of red'..ndant systems and all nonredundant systems for con-fomance to the sr.ismic analysis input infomation set forth in design docunrents.
Include in the inspection: pipe run geometry; support and restraint design, locations, function and clearance (including floor and wall penetration); embedments (excluding those covered in IE Bulletin 79-02); pipe attachements; and valve and valve operator locations and we ights (excluding those covered in IE Bulletin 79-04).
Within 60 days a f the date of this bulletin, submit a description of the results of t his inspection. Where nonconformances are found which affect operability of any system, the licensee will expedite completion of the inspecti;n described in Item 3.
-~
- Normally accessibie refers to those areas of the plant which can be entered during reactor operation.
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