ML20246D641

Special Rept 89-11:on 890328,fire Barrier Door Ns 352 Not Restored to Operable Status within 7 Days.Hourly Fire Watch Established & Fire Door Restored to Operable Status on 890405.Fire Barrier Work Requests Under Review

ML20246D641
Person / Time
Site:	Rancho Seco
Issue date:	04/27/1989
From:	Keuter D SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
89-11, AGM-NPP-89-235, NUDOCS 8905100284
Download: ML20246D641 (2)

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SACRAMENTO MUNICIPAL UTluTY DISTRICT O 6201 S Street, P.O. Box 15830, Sacramento CA 958521830.(916) 452 3211 AN ELECTRIC SYSTEM SERVlNG THE HEART OF CALIFORNIA AGM/NPP 89-235 c, to 71 -

April 27, 1989 Nco 5 D-o 7 Eg 15 U. S. Nuclear Regulatory Commission E3 4 o Attn: J. B. Martin, Regional Administrator Region V #

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 89-11: FIRE BARRIER BREACHED MORE THAN 7 DAYS

Dear Mr. Martin:

Fire barrier door NS 352 was not restored to operable status within the 7 days required by the Rancho Seco Technical Specifications.

l The Sacramento Municipal Utility District hereby submits Special Report No. 89-11 in accordance with Technical Specification 3.14.6.2.

l Members of your staff with questions requiring additional information or clarification may contact Mr. Kurt Zimmermann at (209) 333-2935, extension 4627.

Sincerely, bb p an R. Keuter l

Assistant General Manager Nuclear Plant Manager l Attachment cc w/atch: A. D'Angelo, NRC, Rancho Seco Document Control Desk, Washington DC 8905100284 890427 PDR .ADOCK 05000312 Ig S PDC y RANCHO SECO NUCLEAR GENERATING STATION O 14440 Tw)i Cities Road, Herald, CA 95638 9799;(209) 333-2935 (W h

SPECIAL REPORT NUMBER 89-11 Fire Barrier Breached More Than 7 Days Date of Oscurrence March 29, 1989 Plant Conditions at Time of Occurrence The plant was at hot shutdown following a trip on March 28, 1989.

Identification of Occurrence Fire barrier door NS 352 was not restored to operable status within the 7 days required by the Rancho Seco Technical Specifications.

Description of Occurrence On March 29, 1989, Work Request 154464 was initiated to repair fire barrier door NS 352. During the repair work, welding was identified as being required to repair the door. The Work Request had to be replanned to include work steps for welding. Helding on the door required removal of the door to the maintenance shop. The replanning of the Work Request for welding and the removal of the door to the maintenance shop resulted in the 7 day limit being exceeded.

Corrective Action Taken An hourly firewatch was previously posted in the area and satisfied the Technical Specification 3.14.6 requirement for the deficiency. The fire barrier door was restored to operable status on April 5, 1989. Fire barrier related Work Requests are now being reviewed in the Manager's daily plant status meetings. The purpose of this review is to expedite fire barrier i related Work Requests to ensure the Technical Specification time limits are i not exceeded.

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