ML20003B870
| ML20003B870 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 02/06/1981 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Mcgaughy J MISSISSIPPI POWER & LIGHT CO. |
| References | |
| NUDOCS 8102260019 | |
| Download: ML20003B870 (4) | |
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Dear Mr. McGaughy:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION - GRAND GULF NUCLEAR STATION, UNITS 1 AND 2 As a result of our review of the information contained in the Final Safety Analysis Report for the Grand Gulf Nuclear Station, Units 1 and 2, we have developed tne enclosed request for additional information. Included are questions from the Reactor Systems Branch.
We request that you amend your Final Safety An.31ysis Report to reflect your responses to the enclosed requests as soon as possible and to infom the Project Manager, Joseph A. Martore, of the date by which you intend to respond.
Sincere:1y, Robert L. Tedesco Assistant Director for Licensing Division of Licensing Encicsure:
As stated cc: See next page 81022000N A
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UNITED STATES
[ ',, c.,, ',i NUCLEAR REGULATORY COMMISSION
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- igg, Docket tios.: 50-416/417
- ir. J. P. McGaughy, Jr.
Assistant Vice President - Nuclear Production 141ssissippi Power and Light Company P. O. Box 1640 Jackson, ;4f ssissippi 39205
Dear 'ir. McGaughy:
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION - 3 RAND GULF NUCLIAR STATION, UNITS 1 AND 2 As a result of our review of the information contained in the Final Safety Analysis Report for the Grand Gulf Nuclear Station, Units 1 and 2, we have developed the enclosed request for additional information. Included are questions from the Reactor Systems Branch.
We request that you amend your Final Safety Analysis Report to reflect your responses to the enclosed requests as soon as possible and to inform the Project Aanager, Joseph A. Martore, of the date by which you intend to respond.
Sincerely, he ac-.
Robert L. Tedesco Assistant Director for Licensing Division of Licensing
Enclosure:
As stated cc: See next page.
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Mr. J. P. McGaugny cc: Rccert 3. McGehee, Esc.
Wise, Carcer, Child, Steen 3 Caraway P. C. Ecx 651 Jacksen, vississi;ci 39C05 Tecy S. Conner, Jr., Esc.
Ccnner, Mccre & Cercer 1747 Pennsylvania Avenue, N. W.
Wasnington, C. C.
20006
.Mr. Adrian Zaccaria, Project Engineer Grand Gulf Nuclear Station Bechtel Pcwer Cor;cratien Gaichersburg, Maryland 20760 Mr. Alan G. Wagner, Resident Inspecter P. O. Box 469 Port Gibsen, Mississippi 29150 Mr. N. L. Staccley, Sr. V'ce President Engineering, Production & Constructica P.O. Box 1640 Jackson, Mississippi. 39205 Mr. L. F. Dale
-Nuclear Project Manager P.O. Box 1640 Jackscn, Mississippi 39205 Mr. Jchn Richardson P. O. Sex 1640 Jackscn, Mississippi 39205 9
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ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION GRAND GULF NUCLEAR STATION UNITS 1 AND 2 00CKET NOS. 50-416/417 REACTOR SYSTEMS BRANCH 211.209 Describe provisions to protect the hydraulic control (4.6.1.1.2.4.2.1) units (HCus) and control rod drives (CRDs) from damage due to inadvertent failure of either the automatic backwash suction filter, the pump suction filters, or the drivewater filter.
If none' exist, provide justifi-cation that inadvertent failure of any filter will not cause damage to the HCUs and CRDs.
211.210 Review procedure III.20 of SRP 6.3 requires that long term cooling capability following a LOCA should be adequate in the event of failure of any single active or passive component of the ECCS. We require the appli-cant to discuss how leakage from the first isolation valve in an ECCS suction line from the suppression pool during post LOCA long term cooling will be con-tained. Our concern is drainage of the suppression pool (heat sink) in view of the possible.inaccessability for repair of a leaking valve due to local contamination.
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