ML19207B562
| ML19207B562 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 08/15/1979 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Davidson D CLEVELAND ELECTRIC ILLUMINATING CO. |
| References | |
| NUDOCS 7908300270 | |
| Download: ML19207B562 (1) | |
Text
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UNITED STATES 8 \\*
f 'j NUCLEAR PEGULATORY COMMISSION
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799 ROOSEVELT ROAD
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GLEN ELLYN,lLLINOIS 60137
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Docket No. 50-440 AUG15159 Docket No. 50-441 i
$he Cleveland Electric Illuminating
- Company ATTN:
Mr. Dalwyn R. Davidson Vice President - Engineering P. O. Box 5000 Cleveland, OH 44101 Gentlemen:
The enclosed supplement to IE Bulletin No. 79-14 is forwarded to you to provide added guidance on the intent of the Bulletin.
If you desire additional information regarding this matter, please contact this office.
Sincerely, N'
u tJames G. Keppler Director
Enclosure:
Supplement IE Bulletin No. 79-14 cc w/ encl:
Central Files Director, NRR/DPM Director, h% / DOR PDR Local PDR NSIC TIC Harold W. Kohn, Power Siting Commission Mr. Daniel D. Wilt, Attorney F
4 852 266 7908300970
SSINS:
6820 Accession No:
790B0803fc 4
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UNITED STATES NUCLEAR REGULATORY COMMISSION OFFICE OF INSPECTION AND ENFORCEMENT WASHINGTON, D.C.
20555 i
August 15, 1979 4
Supplement IE Bulletin No. 79-14 SEISMIC ANALYSIS FOR AS-BUILT SAFETY-RELATED PIPING SYSTEMS Discription of Circumstances:
IE Bulletin No. 79-14 was issued on July 2,1979 and revised on July 18, 1979.
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 meet the acceptance criteria.
In performing these inspectons, the licensee is expected to use measuring techniques of sufficieat accuracy to demonstrate that ecceptance criteria are met.
Where i,pection elements important to the seismic analysis cannot be viewed Lem use 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 assurance records.
If a nonconformance is found, the licensee is expected in accordance with Item 4 of the Bulletin to perform an evaluation of the significance of the nonconformance as rapidly as possible to determine whether or not the operability of the system might be jeopardized during a safe shutdown earthquake as defined in the Regulations.
This evaluation g 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 required by Item 2 and 3 of the Bulletin as soon as possible.
The licensee must report the results of thes'
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ments for content and schedule
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