ML20211Q374

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Forwards Restart Rept Addressing Numerous Questions & Issues Identified in NUREG-1195, Loss of Integrated Control Sys Power & Overcooling Transient at Rancho Seco on 851226. Corrective Actions Will Prevent Future Overcooling Events
ML20211Q374
Person / Time
Site: Rancho Seco
Issue date: 12/15/1986
From: Julie Ward
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To: Miraglia F
Office of Nuclear Reactor Regulation
Shared Package
ML20211Q378 List:
References
RTR-NUREG-1195 JEW-86-1020, NUDOCS 8612190251
Download: ML20211Q374 (1)


Text

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$SMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT C P. O. Box 15830, Sacramento CA 95852-1830,(916) 452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA December 15, 1986 JEW 86-1020 Mr. Frank Miraglia Director PWR-B U. S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Frank:

The attached Restart Report has been prepared by the staff of the Sacramento Municipal Utility District, and addresses the numerous questions and issues identified in NUREG-1195 " Loss of Integrated Control System Power and Overcooling Transient at Rancho Seco on December 26, 1985".

Our " Action Plan for Performance Improvement" guided us in developing the analyses and technical material supporting this report. That material is available and in a large measure has already been submitted.

As you can see in this report, the December 26, 1985, event is well understood and the corrective actions taken will not only prevent future overcooling events, but also will reduce the likelihood of complex transients in general.

Should you or your staff require further technical material to support this report, or have questions regarding any item, g please feel free to contact Ray Ashley, our Manager of j Nuclear Licensing. )

Sincerely, mW r '

,4d

( _ J,ohn-E. Ward N Deputy General Manager, s Nuclear .

go cc: J. B. Martin, Region V, NRC

\ h Attachment $D 0h 8612190251 861215 '

PDR ADOCK 05000312 \

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RANCHO SECO NUCLEAR GENERATING STATION ' 14440 Twin Cities Road, Herald, CA 95638 9799: (209) 333-2935