ML20148A031

Forwards Request for Specific Info Necessary for Completion of Response to Ieb 85-003, Motor-Operated Valve Common Mode Failures During Plant Transients Due to Improper Switch Settings

ML20148A031
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	03/09/1988
From:	Kirsch D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
To:	Cockfield D PORTLAND GENERAL ELECTRIC CO.
References
IEB-85-003, IEB-85-3, NUDOCS 8803160424
Download: ML20148A031 (3)

Text

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MAR 9 - 1988 s

Docket No. 50-344 '_

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, c, Portland General Electric Company (, I 121 5. W. Salmon Street -

Portland, Oregon 97204 ,

Attention: Mr. David W. Cockfield .. 1 Vice President, Nuclear ,

Gentlemen * #

SUBJECT:

REQUEST FOR ADDITIONAL INFORMATION

, TROJAN RESPONSE T0,IEB 85-03 Portland General Electric Company':s letters of May 8 and July 15, 1986, and

,. November 18, 1987, pertaining to Trojan, contained their response to IEB 85-03, "Motor-Operated Valve Common Mode Failures During Plant Transients Due to lieproper Switch Settings." The review of the responses indicates the need for additional information before the program to assure valve operability can be. approved.

• The specific information necessary for the completion of our review is enclosed.

Further, we request that you submit the additional information within one 4

ftonth of the date of this letter.

j Sincerely, h

Den

] nis &~F. Kirsch, Director Division of Reactor Safety and Projects

Enclosure:

As stated.

cc w/ enclosure:

C. A Olmstead, Trojan Nuclear Plant J. W. Durham, PGE W. Dixon, DOE 8803160424 G80309 !1 i

PDR ADOCK 05000344 )

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MAR 9 - 1988

-2 bec w/ enclosure:

RSB/ Document Control Desk (RIDS) (IE01) .

l T. Chan, NRR R. J. Kiessel,f6R e D. Persinko, NRR M. Mendonca, RV Project Inspectt;r Resident Inspector G. Cook B. Faulkenberry J. Martin Docket File Bulletin File: !EB 85-03, RV bec w/o enclosure:

LFMB M. Smith ,

Region V

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1 Page 1 of 1 REQUEST FOR AD0lfl0NAL INFORMATION (RAI) RE:

Review of Responses to Action Item e of IE Bulletin 85-03 Licensee: Unit (s): Trojan Portland General Electric Co. Date of Response: 05-08-86 121 S. W. Salmon Street 07-15-86 1 Portland, Oregon 97204 11-18-87 Respondent:

David W. Cockfield Vice President, Nuclear The information pr6vided itLyour response to Actior Item e ef IE Bulletin 85-03 was found to be defirient in some areas. Proside the additional information necessary to resolve the following comr:ents and questions:

1. Has water hammer due to valve closure been considered is the determination of pressure differentials? If not, explain.

2. If M0 VATS is planned _for application to sane MOVs which are ont included

', in its data base, commit to and describe an alternate method tcr determining the extra. thrust ne cssary to overcome pressure g differentials for thesy valves.

3. The propo:P:.' program for action items b, c cnd d of the bulletin is incomplet.e. Provide the following details as a minimum:

(a) cavaltmerit to a ' training pr wram for setting switches, maintaining vaive opicators, using signature testing equipment and i; terpreting signatur c, sed (b) ccmiHtmen:. to justify continued operation of a valve determined tu be incouraole. .'

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