ML17289B250

Informs NRC That Seismic Monitor Will Remain at Present Location & Required 10 Day Rept Will Be Submitted Each Time Monitor Is Inoperable for More than 30 Days,Per Change Delineated in Ref Special Rept,Ler 91-09 & LER 91-09-01

ML17289B250
Person / Time
Site:	Columbia
Issue date:	03/18/1993
From:	John Baker WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	Martin J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
GO2-93-62, NUDOCS 9303240128
Download: ML17289B250 (4)

Text

ACCELERATED INFORMATION DOCUMENT DISTRIBUTION SYSTEM REGUL~RY DISTREBUT~ SYSTEM (RIDS)

ACCESSION NBR:9303240128 DOC.DATE: 93/03/18 NOTARIZED: NO DOCKET ¹ FACIL:56 397 WPPSS Nuclear Project, Unit 2, Washington Public Powe 05000397 AUTH. NAME AUTHOR AFFILIATION BAKER;J.W.

RECIP.NAME

'ashington Public Power RECIPIENT AFFILIATION Supply System MARTEN,J.B. Region 5 (Post. 820201)

SUBJECT:

Informs NRC that seismic monitor will remain at present location !!'equired 10 day rept will be submitted each time monitor is inoperable for more than 30 days.

DISTRIBUTION CODE: ZEOID TITLE: General (50 COPIES RECEIVED:LTR Dkt)-Insp Rept/Notice L ENCL '0 SIZE:

of Violation Response NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD5 PD CLIFFORDPJ D

INTERNAL: ACRS AEOD/DEIB 1 AEOD/DSP/TPAB AEOD/TTC 1 D DEDRO NRR/DORS/OEAB '1 NRR/DRCH/HHFBPT NRR/DRIL/RPEB 1 NRR/DRSS/PEPB NRR/PMAS/ILPB1 1 NRR/PMAS/ILPB2 NUDOCS-ABSTRACT 1 OE DZR OGC/HDS1 1

~G~~Z 02 RES MORISSEAUPD 1 RGN5 FILE 01 EXTERNAL: EG&G/BRYCEPJ.H. NRC PDR NSIC D

A D

D NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DI>l, S,

ROOM Pl-37 (EXT. 504-2065) TO ELIMINATEYOUR NAME Fl<OM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!

TOTAL NUMBER OF COPIES REQUIRED: LTTR 23 ENCL

WASHINGTON PUBLIC POWER SUPPLY SYSTEM P.O. Box 968 ~ 3000 George Wasbtngton Way ~ Rtcbland, Wasbtngton 99352-0968 ~ (509) 372-5000 March 18, 1993 G02-93-062 Docket No. 50-397 Mr. J. B. Martin Regional Administrator U. S. Nuclear Regulatory Commission Region V 1450 Maria Lane, Suite 210 Walnut Creek, CA. 94596

Subject:

NUCLEAR PLANT NO. 2, LICENSE NO. NPF-21 SEISMIC MONITORING INSTRUMENTATION

References:

1) Letter GO2-92-129, dated May 22, 1992, JW Baker (SS) to JB Martin (NRC), "Special Report: Seismic Monitoring Instrumentation"

2) Letter G02-91-152, dated August 15, 1991, JW Baker (SS) to NRC, "Licensee Event Report No, 91-09" 3), Letter GO2-93-063, dated March 18, 1993, JW Baker (SS) to NRC, "Licensee Event Report No. 91-09-01" Reference 1 explained that because of the location of WNP-2 seismic monitor SEIS-TPA-1 on the Reactor Vessel Space Frame, annual refueling activities result in the need to remove the monitor from service. The Space Frame is a structural frame located over the RPV head used to support RCIC piping, CRA ventilation. ducting, RPV head/flange thermocouples, and one RPV level instrument sensing line. It must be removed to allow for removal of the RPV head.

The seismic accelerometer is a mechanical device that is attached to the Reactor Vessel Space Frame.

Technical Specification Action Statement 3.3.7.2.a requires that "with one or more of the above required seismic monitoring instruments inoperable for more than 30 days, in lieu of any other report required by Specification 6.9.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next 10 days outlining the cause of the malfunction and the plans for restoring the instrument(s) to operable status."

g.qr l QO 9303240f28 9303f8 P R ADOCK 05000397 PDR

'age

~

Two'EISMIC MONITORING INSTRUMENTATION

. References 1 and 2 stated that a change to the Technical Specification would be requested to allow for moving the monitor to another location so that entering the Action Statement and submittal of the 30 day report would not be necessary.

Supply System management has concluded that the priority for making this change does not compete with other needed modifications to the plant. Thus, the seismic monitor will remain at its present location and the required 10 day report will be submitted each time the monitor is inoperable for more than 30 days.

Reference 3 is a revision to the LER to reflect this change.

Sincerely,

. W. Baker

- WNP-2 Plant Manager (Mail Drop 927M)

AGH/bk CC: JB Martin - NRC RV NS Reynolds - Winston Ec Strawn JW Clifford - NRC DL Williams - BPA/399 NRC Site Inspector - 901A

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