ML20235S230

Special Rept 87-18:on 870907,Zone 80 Fire Suppression Carbon Dioxide Sys Not Restored to Operable Status within 14 Days. Fire Watch Posted within One Hour Per Tech Specs Section 3.14.4.2

ML20235S230
Person / Time
Site:	Rancho Seco
Issue date:	09/22/1987
From:	Firlit J SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
87-18, AGM-NPP-87-218, NUDOCS 8710080374
Download: ML20235S230 (2)

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%suu-SACRAMENTO MUNICIPAL UTILITY DISTRICT O P. O. Box 15830, Sacramento CA 95852-1830,(916) 452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA AGM/NPP 87-218 E2 1937 U. S. Nuclear Regulatory Commission Attn: J. B. Martin, Regional Administrator Region V Office of Inspection and Enforcement 1450 Maria Lane, Suite 210 Halnut Creek, CA 94596 DOCKET NO. 50-312 RANCHO SECO NUCLEAR GENERATING STATION LICENSE NO. DPR-54 SPECIAL REPORT NUMBER 87-18 ZONE 80 CO2 REMOVAL l-

Dear Mr. Martin:

Zone 80 Fire Suppression CO2 System for the NSEB Battery Room was not restored to operable status within the 14 days specified in the Rancho Seco Technical Specifications. Thus, in accordance with Technical Specifications 3.14.4.2 and 6.9.5.E, the Sacramento Municipal Utility District hereby submits l Special Report 87-18 describing the problem and corrective actions taken.

If there are any questions concerning this report, please contact i Mr. Kurt Zimmermann at (916) 452-3211, extension 4627.

l Sincerely, l

hy/ @

Joseph F. Firlit F.g g %

l Assistant General Manager, g cazS Nuclear Power Production r Pg 9<a Attachment c t

cc: G. Kalman, NRC, Bethesda (w/atch) 'J l A. D'Angelo, NRC, Rancho Seco ( "

F. J. Miraglia, NRR, Bethesda ( "

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Jr 8710080374 870922'~

PDR ADOCK 05000312 Ig S PDR RANCHO SECO NUCLEAR GENERATING STATION L 1444o Twin Cities Road, Herald CA 95638 9799;(209) 333 2935

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( SPECIAL REPORT NUMBER 87-18 ZONE 80 CO2 REMOVAL

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i Date of Report September 22, 1987-Date of Occurrence September 7, 1987 Plant Conditions Prior to Occurrence The plant has been in a major outage with the reactor in cold shutdown.

Identification of Occurrence The following fire protection component was not restored to operable status within fourteen (14) days as specified in Technical Specifications Section 3.14.4.

Zone 80 Fire Suppression CO2 System for NSEB Battery Room Description of Occurrente On August 24, 1987 the Zone 80 CO2 system was removed from service to investigate the trouble alarm received on fire protection Panel H4FPC-5.

Corrective Actions Taken A fire watch was posted within one hour in accordance with Technical Specifi-cations Section 3.14.4.2. The work to correct the Zone 80 CO2 system trouble alarm has been completed and the CO2 system was returned to operable status on September 8, 1987.

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