ML20009F779
| ML20009F779 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 07/16/1981 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Mcgaughy J MISSISSIPPI POWER & LIGHT CO. |
| References | |
| NUDOCS 8108030005 | |
| Download: ML20009F779 (3) | |
Text
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Docket File T. Green'e Local.PDRf NRC PDR M
- Docket Nos.E 50-4161 "9 LB#2'Filp DEisenhut and'50-417 RPurple RTedesco ASchwencer DHouston Mr. James P. McGaughy, Jr.
MService Assistant Vice President I&E (3) l Mississippi Power & Light Co.
NSIC i
Post Office Box 1640 TERA Jackson, Mississippi 39205 TIC
Dear Mr. McGaughy:
SUBJECT:
REQUEST FOR A')DITIONAL INFORMATION - CONTAINMENT SYSTEM 3 i
In the performance of the Grand Gulf licensing review, the staff has l
identified concerns in regard to containment systems. The informatica that we require is identified in the enclosure.
We request that you provide the information not later than August 7, 1981.
If you require any clarification of this request, please contact M.D. Houston,ProjectManager,(301)492-8593.
l Sincerely, l
Orftratl imed Irr Robert L. Toh sec Robert L. Tedesco, Assistart Director l
for Licensing Division of Licensing Enclosture:
Request for Additional Information cc w/ enclosure:
l See next page 8108030005 810716 'i PDR ADOCK 05003416:
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fir. J.- P. McGaughy Assistant Vice President - Nuclear Production Mississippi Do'.ier & Light Company -
P. O. Box 1640 Ja:kson, Mississippi 39205 Robert B. fic0ehee, Esq.
cc:
Wise, Carter,. Child, Steen & Caraway P. O. Box 651 Jackson, Mississippi 39205 Troy B. Conner, Jr., Esq.
Conner, Moore & Corber 1747 Pennsylvania Avenue, N. W.
Washington, D. C.
20006 fir. Adrian Zaccaria, Project Engineer Grand Gulf Nuclear Station Bechtel Power Corporation Gaithersburg, Maryland 20760
-1 Mr. Alan G. Wagner, Resident Inspector
-l P.oute 2 Box 150 Port Gibson, Mississippi 39150 Mr. N. L. Stampley, Sr. Vice President Engineering, Production & Construction P.O. Box 1640 Jackson, Mississippi 39205 Mr. L. F. Dale Nuclear Project Manager P.O. Box 1640 Jackson, 'tississippi 39205 Mr. John P.ichardson P. O. Box 1640 Jackson, !!ississippi 39205
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p CONTAINMENT SYSTEMS BRANCH REQUEST FOR~ ADDITIONAL INFORMATION GRAND GULF NUCLEAR STATION, UNITS 1 AND 2 DOCKET NOS. 50-416/417 021-55 Table 6.2.44 lists the positions of the containment isolation valves for post-accident conditions. Many of the valves that
~are required to be open or closed during an accident fail in the "as is" position upon loss of power.
It is our position that all containment isolation valves fail in the position of greater safety in the event of power failure to the valve operator during an accident. Therefore, justification should be provided to demor. strate compliance with the above position or the appro-priate plant modifications should be made.
ENCLOSURE
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