ML20003A465
| ML20003A465 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 12/01/1980 |
| From: | Robert Carlson NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| To: | Woolever E DUQUESNE LIGHT CO. |
| Shared Package | |
| ML20003A466 | List: |
| References | |
| NUDOCS 8102040061 | |
| Download: ML20003A465 (1) | |
Text
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NUCLEAR REGULATORY COMMISSION
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KING OF PRUSSIA, PENNSYt.VANIA 19406 Docket No. 50-412 DEC 01 C Duquesne Light Company ATTN: Mr. E. J. Wcolever Vice President 435 Sixth Avenue Pittsburgh, Pennsylvania 15219 Gentlemen:
Sulject: Linear Indications in Gib Gusset Welds in Reactor Vessel Structural Support (Neutron Shield Tank) (Your letter of November 3,1980)
Thank you f or your letter, referenced above, which forwarded an interi, report pursuant to 10 CFR 50.55(e) regarding the subject matter.
A review of the interim report was made by this office of your proposed corrective actions to reweld the gib and gib gussets. With respect to code compliance we call your attention to the PSAR requirements which state that the neutron shield tank will be constructed in accordance with ASME Section VIII. We interpret Section VIII to require a post weld heat treatment at 11000F for two hours plus 15 minutes for each additional inch over two inches. We note you requirement is 3500F-4500F, for eight hours. We request you re-review these requirements.
We are looking forward to reviewing your final report which you plan to issue on July 15, 1981.
Your cooperation with us is appreciated.
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El Sincerely, m
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,, Robert T. Carlson, Chief n
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Engineering Support Branch cc:
R. J. Washabaugh, Quality Assurance Manager
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