ML20246G100

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Informs of Slack Cable Alarm Received During Surveillance Testing of CRD & Orifice Assembly on 890818.Reactor Shut Down to Assess Cause
ML20246G100
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 08/24/1989
From: Crawford A
PUBLIC SERVICE CO. OF COLORADO
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
P-89330, NUDOCS 8908310221
Download: ML20246G100 (2)


Text

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P.O. Box 840 I

Denver CO 80201 0840 l-l August 24, 1989

- A. clegg crawford Fort St. Vrain vice president E

Unit No. 1 Nuclear Operations P-89330 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk-Washington, D.C.

20555 Docket No. 50-267

$UBJECT: Region 19 Control Rod Drive Assessment Gentlemen:

On August' 18, 1989, the Public Service Company of Colorado (PSC) received a slack cable alarm during surveillance testing of the control rod drive and orifice assembly (CRD0A) in Region 19 of the Fort St. Vrain (FSV) reactor. The reactor has 'been shutdown, and efforts are underway to move the Region 19 CRD0A to the hot service facility and assess the cause of the control rod binding associated with the slack cable alarm.

Once PSC's assessment of the control rod binding condition has been completed, the results will be reviewed with the NRC prior to reactor restart.

The purpose of the assessment will be to determine if the cause of the control rod binding conditio:: has generic implications concerning the operability of other CRD0As.

If you have any questions concerning this matter, please contact Mr.

M. H. Holmes at (303) 480-6960.

Very truly yours, 5

A. Clegg Crawford Vice President Nuclear Operations kDj 3 gcn osooogg, 21 99ogg4 S

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j, P-89330 Page 2 August 24, 1989 ACC/MHH:drg Regional Administrator, Region IV cc: ' Attn: Mr. T. F. Westerman, Chief Projects Section B Mr. Robert Farrell Senior Resident Inspectcr Fort St. Vrain I

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