ML20132C939

Forwards Eg&G 850701 Evaluation of CRD Orifice Assembly Bearing Rept from Public Svc Co of Co, Per Util 850613 Submittal.Installed Bearings Acceptable Replacements for Original Design.Review of 850607 Submittal Also Encl

ML20132C939
Person / Time
Site:	Fort Saint Vrain
Issue date:	07/12/1985
From:	Johnson E NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Lee O PUBLIC SERVICE CO. OF COLORADO
Shared Package
ML20132C940	List: ML20132C939 ML20132C948
References
TAC-55294, NUDOCS 8507310076
Download: ML20132C939 (3)

Text

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JUL 121985 l

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In Reply Refer To:

Docket:

50-267 Public Service ~ Company of Colorado ATTN:.0.

R. Lee, Vice President Electric Production P. O. Box 840 Denver, Colorado 80201

Dear Mr. Lee:

Our consultants at EG&G Idaho, Inc. have reviewed your June 13,1985(P-85201) submittal related to the control rod drive and orifice assembly (CRD0A) bearings. A copy of their evaluation report is enclosed for your information and coment.

Based on our review of the information you have provided and the enclosed evaluation, we have concluded that the installed bearings are acceptable replacements for the original design.

In order to ensure continued acceptable bearing performance, we request that the test programs discussed in P-85201 be completed and that bearing performance be f actored into your improved CRD0A surveillance and preventative maintenance program.

We have also completed our review of your June 7,1985 (P-85195) submittal related to the epoxy used to attach temperature sensors in the CRD0As. We agree that this material appears to be adequate for the attachment of the sensors.

It is our understanding that the epoxy will be included in the upcoming environmental qualification program. We recommend that the epoxy be inspected for deterioration as part of the CRD0A preventative maintenance program.

If you have any questions on this subject, please contact us.

Sincerely, Oridnct Sh"i UV E. H. Jchr. son E. H. Johnson, Chief Reactor Project Branch

Enclosure:

Evaluation of CRD0A Bearings c y/

Enclosure:

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8507310076 850712 4

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' Public Service Company.of Colorado cc:

Mr. D. W. Warembourg, Manager Nuclear Engineering Division Public Service Company of Colorado P. O. Box 840 Denver, Colorado 80201 Mr. David Alberstein,14/159A GA Technologies, Inc.

P. O. Box 85608 San Diego, California 92138 Kelley, Stansfield & 0'Donnell Public Service Company. Building 550 15th Street, Room 900 Denver, Colorado 80202 Chairman, Board of County Cormi.

of Weld County, Colorado Greeley, Colorado 80631 Regional Representative Radiation Programs Enviror. mental Protection Agency 1860 Lincoln Street Denver, Colorado 80203 Mr. H. L. Brey, Manager Nuclear Licensing / Fuels Div.

Publi.c Service Company of Colorado P. O. Box 840 Denver, Colorado 80201 J. W. Gahm, Manager, Nuclear Production Division Fort St. Vrain Nuclear Station 16805 WCR 191 Platteville, Colorado 80651 L. Singleton, Manager, Quality Assurance Division (sameaddress)

Colorado Radiation Control Program Director

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. Public' Service Company of Colorado '

bec distrib.~ by.RIV:

RSB Reading File Resident Inspector R. D. Martin, RA R. E. Ireland, RSB/ES P. Wagner, RSB/ES R. Denise, DRS&P E.'Haycraft,DRSP/LA RIV Official Reading File E. Jordan, IE E. Butcher, ORB 3 CPB/NRR D. Eisenhut D/DL

- G. Lainas, DL K. Heitner, ORB 3 J. Taylor, IE I

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