ML20151T718

Special Rept 88-08:provides Updated List of Fire Barriers Breached More than 7 Days.Four Breaches Added to Support Ongoing Mod Activites & 23 Breaches Have Been Repaired.Util Will Return to Original Reporting Format

ML20151T718
Person / Time
Site:	Rancho Seco
Issue date:	04/14/1988
From:	Firlit J SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
88-08, 88-8, AGM-NPP-88-274, NUDOCS 8804290130
Download: ML20151T718 (3)

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SACRAMENTO MUNICIPAL UTILITY DISTRICT O P. O. Box 15830, Sacramento CA 95852-183o;'(916) 452 3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA p

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U. S. Nuclear Regulatory Commission I' ll ,

Attn: J. B. Hartin,'legional Administrator Region V  :

1450 Haria Lane, Suite 210 Halnut Creek, CA 94596 Docket No. 50-312 l Rancho Seco Nuclear Generating Station License No. DPR-54 SPECIAL REPORT NUMBER 88-08: FIRE BARRIERS BREACHED HORE THAN 7 DAYS

Dear Mr. Hartin:

The Sacramento Municipal Utility District hereby submits Special Report Number 88-08 in accordance with Rancho Seco Nuclear Generating Station Technical Specification 3.14.6.2. This report provides an updated list of nonfunctional ,

fire barriers which have not been restored to functional status within 7 days. l The District evaluates each nonfunctional fire barrier against the requirements of Technical Specification 3.14.6 and verifies that the proper .

fire watch is established.  !

Since the last Special Report on fire barriars breached more than 7 days, 23 reportable breaches have been repaired. An additional 4 breaches were added during this period to opport ongoing modification activities.

Due to plant restart and the corresponding reduction in the number of breached i barriers, the District will return to the original reporting format for j fire-rated assembly breaches. Special Reports will be submitted within 30 1 days in accordance with Technical Specifications 3.14.6.2 and 6.9.5.E only when individual fire-rated assemblies are not restored to operable status within 7 days.

Please contact me if you have any questions. Members of your staff with questions requiring additional information or clarification may contact Mr.

Kurt Zimmerman at (916) 452-3211, extension 4627.

Sincerely, ep ' F. Firlit Assistant General Manager, Nuclear Power Production Attachment cc: G. Kalman, NRC, Rockville (w/atch) jh g g A. D'Angelo, NRC, Rancho Seco ( )

F. J. Miraglia, NRR, Rockville ( "

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Dage ko. 1 04/01/65 ATTACMPENT TO T 4 h*C SN CIAL R DORT  ;

PSECOED FICE FMRIER ro);A;T PD.ETMTION PF.T. LCO OffN CLOSE CLOSE NLPPER TYif NUPBER REASON FOR BDEACx PLC.N TO E 9 AIR DATE DATE DATE TD-448 DM 87-01907 A. DAPCfR CLOSURE SDA14 TW13TED. WR 138377  !!i11/87 42/14/87 22/19/88 FD-31k DW 88-N!34 A. CO PER FAILED SD. 1912. <R S-7836 f2/29/e4 05/01/88 //

FD-33N DW 88-N!33 A. DcWE8 FAILED SD.1812. NCR S-7835 N/29/88 / / $4/01/88 AU-211 DOOR 64-M116 A. PROD I004 OffN FOR TEurCERY AIR WR 137457 92/19/64 // 93/P2/f4 40SES.

A0-218 0004 88-N117 A. DOOP D004 0;fN FOR TEMP 0GRf A!c WR 137457 f2/19/88 // 03/02/88 HOSES.

AU-334 L.004 86-N413 F. D004 INODEPABLE WHILE UNDEe30!NG WR134181 N/28/M e5/31/87 //

MODIFICATIONS PER EAR PL87-97.

AUS-f13 D004 87-01616 A. 0004 DROPPED OCEN TO RUN CABLES THRU WR 1353f5 73/10/87 16/15/87 03/91/88 l THE D004 02-20 AS ELEC 88-N156 A. M CABLE FORM LOSD TEST. WR 137497 #3/18/M / / 93/23/88 50-M M ELEC 87-N934 A. PENETRATION RAILED SD 2fl.03V. kR 147821 12/22/87 #1/15/M 20/93/f3 781163 ELEC 88-4M69 A. M CABLE FOR HVAC TEST. WR 114512 #1/26/88 P2/75/M N/44/S$

781167 ELEC M-4Mi9 A. M CABLES FOR STP-ItE WR 12526 #2/i4/88 // 72/12/68 781558 kEC 84-N468 A. E CABLE F04 N TEST. WR!!4512 #1/26/88 02/tS/85 P2/64/88 781579 ELEC 88-NH3 A. E CARES FOR STP-19E WR 134521 92/64/88 // 02/12/24 a7J2722 ELEC 88-N135 A. SAFE-S4JTDOWN CIRCUIT RE7)! PES ECN R-2714 f3/21/88 // f3/16/88 3-HOUR GTED WRG.

4FS72 ELEC 88-N185 A. PLLL CABLE. kR 142624 $2/11/88 75/91/84 / /

liS8 miCH 84-#N32 A. If6@DED IfETMT10N. 01/ll/f8 92/28/84 fJ/18/64 2071 RECH 88-N488 A. LA?3E VOID IN PCETETIOV. 82/83/M // tJ/22/88 3448 MECH 87-82931 A. FEETEATION FAILED SD 201.83Y. 64 14 M 2# 12/22/67 81/15/88 92/18/Fa NOID *ECH 88-N!PJ A. LNIDENTIFIED 4' CO2EBORE. #2/18/88 // 43/84/88

{ NOID-l MECF 87-919% A. LP!DENTIFIED PEETRATION. T*0VE FAD WR 1491FJ 12/f4/87 91/f5/84 03/21/03

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Dage % 2 84/#1/88 ATTAC* EAT TO THE ADC SNCIA. RE:CRT fricOCD FIRE PARRIER

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FORCAST CTNETRATION MNE. LCO OffN CLOSE CLOSE NUF3ER TYN NUVFER RfCSON FOR BREACW A AN TO RE N!R DATE NTE NTE

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4010-2 MECH 87-71967 A. LNIDEWTIFIED PENETRATION. REW wD WR 144tM 12/M/87 B1/75/63 03/21/88 RERACE SEAL.

N010-3 WECW 87-01968 A. UNIDENTIFIED PENETRATION. REW AQ WR 14#102 12/08/87 01/25/68 03/21/M PEACCE SEAL.

NCID-4 uECH 87-01969 A. Lh!DENTIFIED CfNETRATION. REW AND WR 1431M 12/ tall'/ 01/05/88 33/17/M REttACE SER.

NOID 5

• ecd 87-41978 A. Lw!DENTIFIED NNETEATION. NW AQ WR 1471M 12/M/87 01/75/88 03/21/88 RERACE SEAL.

NCID-6 *ECW 87-@!971 A. LAIDENTI !ED PENET84 TION. REW A4 WR 140102 12/M/87 01/95/88 03/21/63 RER ACE SEAL.

N0!D-7 *ECH 87-i!972 A. LAIDE%TIFIED PCWETRATION. REW AC 6R 147182 12/M/87 01/75/88 03/21/88 DERACI FEAL.

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