ML19249B929
| ML19249B929 | |
| Person / Time | |
|---|---|
| Site: | Hatch, Vogtle  |
| Issue date: | 08/15/1979 |
| From: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | John Miller GEORGIA POWER CO. |
| References | |
| NUDOCS 7909070101 | |
| Download: ML19249B929 (2) | |
Text
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'o UNITED STATES NUCLEAR REGULATORY COMMISSION 8 *h
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ATLANT A GEORGIA 30303 3
AUG 151979 In Reply Refer To:
RII:JPO 50-321, 50-366 50-424, 50-425 Georgia Power Company Attn:
J. H. Miller, Jr.
Executive Vice President 270 Peachtree Street, N. W.
Atlanta, Georgia 30303 Gentlemen:
The enclosed supplement to Bulletin 79-14 is forwarded to you to provide added guidance on the intent of the Bulletin.
If you desire additional inforcation regarding this clatter, please contact this office.
Sincerely, (I~_ _Da' w
ri James P. O'Reilly Director
Enclosures:
1.
Supplement IE Bulletin No. 79-14 2.
List of IE Bulletins Issued in Last Six Months 7900070 / C/
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M. Manry, Plant Man;>" r Post Office Box 442 Baxley, Georgia 3151, C. E. Belflower Site QA Supervisor Post Office Box 442 Bayley, Georgia 3151',
K. M. Gillespie Const ruction Project 'i:i n.i g e r Post Office Box 282 Waynesboro, Georgia 30810 E. D. Groover QA Site Supervisor Post Office Box 282 Waynesboro, Georgia t 'Ji<a l fD
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6820 Accession No:
7908080360 UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 August 15, 1979 Supplement IE Bulletin No. 79-14 SEISMIC ANALYSIS FOR AS-BUILT SAFETY-RELATED PIPING SYSTEMS Description of Circumstances:
18, 1979.
IE Bulletin No. 79-14 was issued on July 2, 1979 and revised on July The bulletin requested licensees to take certain actions to verify that seismic analyses are applicable to as-built plants. This supplement to the bulletin provides additional guidance and definition of Action Items 2, 3, and 4.
To comply with the requests in IE Bulletin 79-14, it will be necessary for licensees to do the following:
2.
Inspect Part of the Accessible Piping For each system selected by the licensee in accordance with Item 2 of the Bulletin, the licensee is expected to verify by physical inspection, to the extent practicable, that the inspection elements In performing these inspections, the meet the acceptance criteria.
licensee is expected to use measuring techniques of sufficient accuracy to d-monstrate that acceptance criteria are met. Where inspection elecents important to the seismic analysis cannot be viewed because of thermal insulation or location of the piping, the licensee is expected to remove thermal insulation or provide access. Where physical inspection is not practicable, e.g., for valve weights and materials of construction, the license is expected to verify conformance by inspection of quality If a nonconformance is found, the licensee is expected assurance records.
in accordance with Item 4 of the Bulletin to perform an evaluation of the significance of the nonconforance as rapidly as possible to determine whether or not the operability of the system might be jeopardized during This evaluation a safe shutdown earthquake as defined in the Regulations.
is expected to be done in two phases involving an initial engineering judgement (within 2 days), followed by an analytical engineering evaluation (within 30 days). Where either phase of the evaluation shows that system operability is in jeopardy, the licensee is expected to meet the applicable technical specification action statement and complete the inspections The licensee required by Item 2 and 3 of the Bulletin as soon as possible.
must report the results of the$p.,jnspfg}jons in accordance with the require-
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ments for content and schedule DUPLICATE DOCUMENT c
3.
Inspect Remaining Piping Entire document previously entered The licensee is expected to in into system under:
safety-related piping systems report the results in accordan ANO Md 60<603f,0 schedule as given in Item 3 of j
No. of pages:
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