ML20054D746
| ML20054D746 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 04/12/1982 |
| From: | Withers B PORTLAND GENERAL ELECTRIC CO. |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| REF-SSINS-6820 IEB-79-14, NUDOCS 8204230344 | |
| Download: ML20054D746 (1) | |
Text
Bulletin Reply 79-11+
Docket No. 50-3W
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Portland Gereral Electric Coripariy 1
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m PJ April 12, 1982
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Docket 50-344 m
License NPF-1 g
.y Mr. R.11. Engelken, Director A
U. S. Nuclear Regulatory Commission g
Region V Creekside Oaks Office Park S'
1450 Maria Lane RECE!VED Suite 210 Walnut Creek, CA 94596-5368 P_:
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Dear Mr. Engelken:
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Seismic Analyses of Safety-Related Piping Sys PGE's supplementary letter of December 28, 1981 in response to IE Bulletin 79-14 committed to provide the results of seismic reanalysis of nine valves by April 1982. Four valves have been reanalyzed to demon-strate their acceptability without modifications.
However, due to difficulty in seismic calculations, the reanalysis of the remaining five valves has not been completed to date.
It is currently expected that the reanalysis of the remaining five valves will be completed by August 1982, at which time PGE will provide a complete result of the reanalysis of all nine valves including a description of modifications, if any.
Sincerely, Bart D. Withers Vice President Nuclear i
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Mr. Robert A. Clark, Chief Operating Reactors Branch No. 3 Nuclear Regulatory Commission l
Mr. Lynn Frank, Director 1
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State of Oregon l
Department of Energy 8204 23 0 3 W IEll l
121 S.W Sa! mon Street. Poritand. Oregon 97204 1 0