ML17279A552

Submits Supplemental Response to Insp Rept 50-397/87-09 Re Plans to Make post-trip Review Committees More Effective in Determining Causative Factors of Events.Implementation of Planned Changes Does Not Supplant Existing Procedure

ML17279A552
Person / Time
Site:	Columbia
Issue date:	09/01/1987
From:	Sorensen G WASHINGTON PUBLIC POWER SUPPLY SYSTEM
To:	NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
GO2-87-238, NUDOCS 8709100371
Download: ML17279A552 (4)

Text

REGULAT INFORMATION DISTRIHUTIO 'STEM (RIDS) o ACCESSION NOR: 8709100371 DOC. DATE: 87/09/01 NOTARIZED: NO DOCKET FACIL: 50-397 WPPSS Nuclear Progecti Unit 2i Washington Public Poee 05000397 AUTH. NAME AUTHOR AFFILIATION ORENBENi G. C. Washington Public Power Supply System .

RECIP. NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Discusses supplemental respnse to Insp Rept 50-397/87-09 re plans to make post-trip reviee committees more effective in determining causative factors of events. Implementation of planned changes does not supplant existing procedure.

DISTRIBUTION CODE: IE01D COPIES RECEIVED: LTR ENCL SIZE:

TITLE: General (50 Dkt)-Insp Rept/Notice of Violation Response NOTES:

RECIPIENT COPIES REC IP IENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD5 PD SAMWORTHi R INTERNAL: ACRB 2 AEOD 1 DEDRO 1 NRR MORIBSEAUi D NRR/DOEA DIR 1 NRR/DREP/EPB 1 NRR/DREP/RPB 2 NRR/DRIS DIR 1 NRR/PMAS/ ILRB 1 0 I ERMANz J 1 OGC/HDB2 1 1 RES DEP Y G 1 1 RGN5 FILE 01 1 TERNAL: LPDR NRC PDR NSI C TOTAL NUMBER OF COPIES REQUIRED: LTTR 22 ENCL

Washington Public Power Supply System 30008eorge Washington Way P.O. Box968 Richland, Washington 99352-0968 (509)372-5000 September 1, 1987 G02-87-238 Docket No. 50-397 Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 Gentlemen:

Subject:

NUCLEAR PLANT NO. 2 LICENSE NO. NPF-21 NRC INSPECTION REPORT 87-09

Reference:

Letter, G02-87-218, G. C. Sorensen (SS) to J. B. Nartin (NRC-RV), same subject, dated July 17, 1987 In the referenced letter the Supply System committed to provide this supplemental response to NRC Inspection Report 50-397/87-09 regarding our plans to make post-trip review committees more effective in the determination of causative factors pertaining to events.

A detailed evaluation of Plant Procedure 1.3.5, "Reactor Trip and Recovery", has been performed and, as a result, the procedure will be revised to include the following improvements:

1. The followup review committee will be assembled immediately following any reactor trip unless otherwise directed by the Plant Nanager.

2. When personnel performance is a contributing factor to an event, a peer review committee will be formed to evaluate the decision processes.

3. Predetermined experts will be relied upon for cause investigation in support of the restart decision process.

It should be noted that this aspect is currently effectively.

performed and the change is to document who the resources are and facilitate management of the group.

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Nuclear Regulatory Commission Page Two September 1, 1987 NRC INSPECTION REPORT 87-09

4. If the cause(s) of a reactor trip are indeterminate, a surveillance method will be developed, if possible, to monitor the component/system response following restart.

5. Independent verification will be required of significant conclusions relied upon in the restart decision process and root cause assessment.

It is anticipated that the procedure will be revised by November 30, 1987; however, in the interim, a management letter has been issued which directs personnel to follow the intent of the changes. It should be noted that implementation of these planned changes does not supplant the existing procedure. Until such time that the procedure is revised, these changes are to be considered as enhanced process policy, with Plant Management as the primary implementor of this policy.

Should you have any questions regarding our response, please do not hesitate to contact me.

Very truly yours, G. C. Sor nsen, Manager Regulatory Programs JDA/tmh cc: J. B. Martin - NRC RV R. B. Samworth - NRC C. J. Bosted 901A

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