ML20207N621

Special Rept 88-15:on 880915,fire Barrier Doors AU 216 & AU 217 Not Restored to Operable Status within 7 Days.Caused by Doors Being Kept Open to Provide Ventilation in Support of Work on Auxiliary Bldg HVAC Sys.Doors Restored

ML20207N621
Person / Time
Site:	Rancho Seco
Issue date:	10/12/1988
From:	Keuter D SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
88-15, AGM-NPP-88-524, NUDOCS 8810190260
Download: ML20207N621 (2)

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bSMUD SACRAMENTO MUMCIPAL UTIUTY DISTmCT O P. O. Cox 15830, Sacramento CA 95852-1830,(916) 452 3211 AN ELECTRIC SYS1EM SERVING THE HEART OF CAllFORNIA i

AGM/NPP 88-524 1

October 12, 1988 i

i U. S. Nuclear Regulatory Commission httn: J. B. Hartin, Regional Administrator ,

Region V .

1450 Haria Lane, Suite 210  !

Halnut Creek, CA 94596 i Docket No. 50-312 Rancho Seco Nuclear Generating Station License No. DPR-54 SPECIAL T.EPORT NUMBER 88-15: FIRE BARRIERS BREACHED MORE THAN 7 DAYS l l

Dear Hr. Martin:

fire barrier doors AU 216 and AU 217 were not restored to operable status  !

a within the 7 days specified in the Rancho Seco Technical Specifications. The 7

Sacramento Municipal Utility District hereby submits Special Report No. 88-15 t in accordance with Rancho Seco Technical Specification 3.14.6.2.

Members of your staff with questions requiring additional information or clarification may contact Mr. Kurt Zimmermann at (916) 452-3211,  !

extension 4627. l i

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Sincerely, f m :S  ?

l Dan R. Keuter [

Assistant General Manager i Nuclear Power Production  :

Attachment i i cc w/atch

A. D'Angelo, NRC, Rancho Seco j Document Control Desk, Washington DC .

I GG10190260 G81012 PDR ADOCK 00000312 S PDC Ik l J

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RANCHO SECO NUCLEAR GENERATWO STATION O 1444o Tmn Cities Road Herald, CA 95638 9799;(209) 333 2935 .

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• • 8 SPECIAL REPORT NUMBER 88-15 Fire Barriers Breached More Than 7 Days Date of Occurrence >

September 15, 1988 t Plant Conditions at Time of Occurrence ,

The plant was at approximately 80% power on September 15, 1988. l Identification of Occurrence l Fire barrier doors AU 216 and AU 217 were not returned to operable status within 7 days as required in Technical Specification 3.14.6.2.

Descriotion of Occurrence j On September 8, 1988, fire barrier doors AU 216 and AU 217 were opened to provide ventilation in support of planned work under Work Request 153058 on the Auxiliary Building Heating, Ventilation and Air Conditioning System. Door AU 216 is cetween fire area 16 and the corridor. Door AU 217 is between fire area 17 and the corridor.

Corrective Action Taken  !

! An hourly firewatch was previously posted in the area and satisfied the f q Technical Specification 3.14.6 require-ent for the deficiency. The fire

barrier doors were restored to opert .c status on September 19, 1988.

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