ML19331C627
| ML19331C627 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 07/09/1980 |
| From: | Trimble D ARKANSAS POWER & LIGHT CO. |
| To: | Seyfrit K NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| References | |
| 1-070-11, 2-070-14, IEB-80-04, IEB-80-4, NUDOCS 8008190203 | |
| Download: ML19331C627 (1) | |
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POR:HQ LPDR-RC NSIC ARKANSAS POWER & LIGHT COMPANY POST OFFICE BCX 551 LITTLE ROCK, ARKANSAS 72203 (501) 37 July 9, 1980 1 070-11
' 070-14 Mr. K. V. Seyfrit, Director Office of Inspection & Enforcement U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, Texas 76011
Subject:
Arkansas Nuclear One - Units 1 and 2 Docket Nos. 50-313 and 50-368 License Nos. DPR-51 and NPF-6 IE Bulletin 80-04 Emergency Feedwater Pump Analyses (File:
1510.1 and 2-1510.1)
Gentlemen:
In our letter of May 27, 1980, responding to IE Bulletin 80-04, we stated, for AN0-1, that the ability of the emergency feedwater pumps to remain oper-able after extended operation at runout flow was still being investigated and that the findings of our study would be forwarded to you as soon as they were available. These findings are now complete and are provided as follows.
Analyses were performed by the Architect Engineer, using plant specific data and input from the pumps manufacturer, to determine if the emergency feedwater pumps would remain operable after possible runout flow conditions following a main steam line break (MSLB).
These analyses demonstrated, even assuming no operator action, that the emergency feedwater pumps will remain operable dur-ing and following a MSLB accident considering runout flow conditions.
This concludes our response to IE Bulletin 80-04.
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Very truly yours, l
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David C. Trimble Manager, Licensing DCT:0EJ:ms cc: Mr. Victor Stello, Jr., Dir ctor Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C. 20555 6008190 M 3 MEveEA MC1E SOUN UNTE5 SvsTEM g